Oval|Natural|GIA

1.51ct E SI1 Oval Natural Diamond

EX • E/SI1 • GIA 3535937906

Certificate GIA 3535937906

Diamond specifications and retailer prices

From $6,067 USD
As of October 25, 2026
Save $4,864 USD (44%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $13,101 USD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3535937906. Listed at 28 retailers as of October 25, 2026, with a 80% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
E
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 3535937906
Dimensions8.88 × 6.34 × 4.05 mm
L/W Ratio1.40
Top View
8.88 mm6.34 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 3535937906
Side View
Table 58.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 25
Current: $9,539 USD|Low: $4,935 USD|High: $11,048 USD|Avg: $7,208 USD|+1.2%
Retailer 1
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Retailer 24
October 27, 2026
Retailer 17$5,257 USD
Retailer 16$5,894 USD
Retailer 3$6,067 USD
Retailer 10$6,189 USD
Retailer 20$6,197 USD
Retailer 7$6,275 USD
Retailer 22$6,550 USD
Retailer 9$6,551 USD
Retailer 8$6,570 USD
Retailer 15$6,584 USD
Retailer 14$7,096 USD
Retailer 21$7,230 USD
Retailer 12$7,340 USD
Retailer 6$7,394 USD
Retailer 23$7,631 USD
Retailer 2$7,700 USD
Retailer 4$7,700 USD
Retailer 11$7,896 USD
Retailer 24$7,950 USD
Retailer 13$7,952 USD
Retailer 18$8,054 USD
Retailer 5$8,188 USD
Retailer 1$9,539 USD
Retailer 19$10,931 USD

34 data points across 24 retailers

28 retailers$6,067 USD to $10,931 USD

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Cheapest Retailer
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$6,067 USD
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Retailer 2
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$6,189 USD
View
A
Retailer 3
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$6,197 USD
View
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Retailer 4
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$6,275 USD
View
A
Retailer 5
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$6,551 USD
View
Price last confirmed 17 days ago
A
Retailer 6
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$6,570 USD
View
A
Retailer 7
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$6,584 USD
£5,184 GBP
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Price last confirmed 35 days ago
A
Retailer 8
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$6,782 USD
View
Price last confirmed 37 days ago
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Retailer 9
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$6,966 USD
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Price last confirmed 41 days ago
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Retailer 10
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$7,096 USD
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Price last confirmed 21 days ago
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Retailer 11
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$7,206 USD
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Price last confirmed 29 days ago
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Retailer 12
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$7,230 USD
View
Price last confirmed 8 days ago
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Retailer 13
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$7,340 USD
£5,780 GBP
View
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Retailer 14
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$7,394 USD
View
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Retailer 15
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$7,631 USD
A$11,740 AUD
View
Price last confirmed 25 days ago
B+
Retailer 16
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$7,700 USD
View
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Retailer 17
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$7,700 USD
View
B+
Retailer 18
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$7,826 USD
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Price last confirmed 38 days ago
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Retailer 19
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$7,896 USD
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Retailer 20
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$7,950 USD
View
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Retailer 21
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$7,952 USD
View
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Retailer 22
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$8,038 USD
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Price last confirmed 40 days ago
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Retailer 23
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$8,054 USD
€7,670 EUR
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Retailer 24
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$8,188 USD
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Price last confirmed 20 days ago
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Retailer 25
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$9,539 USD
ZAR 154,098 ZAR
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Retailer 26
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$10,931 USD
£8,607 GBP
View
B
Retailer 27
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$12,521 USD
View
Price last confirmed 39 days ago
Most Expensive
B
NZ Jewellers
0756b0b7-b31a-4aad-84ea-0f0eaef93a9d · Sep 30
$13,101 USD
View
Price last confirmed 29 days ago
27 more retailers have this diamond
Prices start from $6,067 USDSave up to $4,864 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.51ct Oval
$6,067 USD