Oval|Natural|GIA

1.51ct D SI2 Oval Natural Diamond

EX • D/SI2 • GIA 5536608119

Certificate GIA 5536608119

Diamond specifications and retailer prices

From $6,713 USD
As of October 30, 2026
Save $2,417 USD (26%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $14,340 USD at NZ Jewellers · As of October 20, 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5536608119. Listed at 15 retailers as of October 30, 2026, with a 36% 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
D
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle37.92°
Pavilion angle39.91°
OriginNatural
Grading LabGIA
CertificateGIA 5536608119
Dimensions9.00 × 6.51 × 4.03 mm
L/W Ratio1.38
Top View
9.00 mm6.51 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5536608119
Side View
Table 59.0%Crown 37.92°Girdle: MED-THKPavilion 39.91°Culet: NoneDepth 61.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $14,340 USD|Low: $6,344 USD|High: $14,839 USD|Avg: $8,821 USD|-3.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
October 23, 2026
Retailer 4$6,344 USD
Retailer 12$6,635 USD
Retailer 3$6,713 USD
Retailer 9$6,934 USD
Retailer 17$7,169 USD
Retailer 16$7,170 USD
Retailer 18$7,767 USD
Retailer 14$7,887 USD
Retailer 11$8,001 USD
Retailer 6$8,840 USD
Retailer 15$8,840 USD
Retailer 7$8,962 USD
Retailer 5$9,130 USD
Retailer 2$9,304 USD
Retailer 8$9,616 USD
Retailer 10$10,576 USD
Retailer 13$12,013 USD
NZ Jewellers$14,340 USD

35 data points across 18 retailers

15 retailers$6,713 USD to $9,130 USD

Retailer 1
-
$6,344 USD
Price last confirmed 7 days ago
Retailer 2
-
$6,635 USD
View
Price last confirmed 9 days ago
A
Retailer 3
-
$6,713 USD
View
Retailer 4
-
$7,170 USD
View
Price last confirmed 14 days ago
Retailer 5
-
$7,767 USD
View
Price last confirmed 8 days ago
Retailer 6
-
$7,887 USD
View
Price last confirmed 7 days ago
Retailer 7
-
$8,001 USD
£6,300 GBP
View
Price last confirmed 7 days ago
B+
Retailer 8
-
$8,840 USD
View
B+
Retailer 9
-
$8,840 USD
View
Retailer 10
-
$8,962 USD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
$9,130 USD
View
Retailer 12
-
$9,304 USD
€8,861 EUR
View
Price last confirmed 7 days ago
Retailer 13
-
$9,616 USD
View
Price last confirmed 9 days ago
Retailer 14
-
$12,013 USD
£9,459 GBP
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
2fbdf712-2a41-43b6-b8fd-b1f921c12a5a · Oct 20
$14,340 USD
View
Price last confirmed 9 days ago
14 more retailers have this diamond
Prices start from $6,713 USDSave up to $2,417 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
$6,713 USD