Oval|Natural|GIA

1.51ct I SI1 Oval Natural Diamond

EX • I/SI1 • GIA 5526668826

Certificate GIA 5526668826

Diamond specifications and retailer prices

From $6,809 USD
As of October 30, 2026
Save $7,735 USD (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $14,544 USD at NZ Jewellers · As of October 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5526668826. Listed at 20 retailers as of October 30, 2026, with prices from $6,809 to $14,544, a $7,735 spread on the same certified stone. NZ Jewellers lists it at $14,544. 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
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5526668826
Dimensions9.41 × 6.18 × 3.99 mm
L/W Ratio1.52
Top View
9.41 mm6.18 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5526668826
Side View
Table 61.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 64.6%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $14,544 USD|Low: $6,666 USD|High: $14,544 USD|Avg: $8,936 USD
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
November 1, 2026
Retailer 16$6,809 USD
Retailer 15$7,265 USD
Retailer 8$7,272 USD
Retailer 14$7,272 USD
Retailer 3$7,399 USD
Retailer 7$7,878 USD
Retailer 4$7,999 USD
Retailer 5$8,048 USD
Retailer 9$8,104 USD
Retailer 13$8,234 USD
Retailer 12$8,790 USD
Retailer 6$9,090 USD
Retailer 11$9,503 USD
Retailer 10$10,683 USD
Retailer 2$12,120 USD
NZ Jewellers$14,544 USD

42 data points across 16 retailers

20 retailers$6,809 USD to $14,544 USD

B+
Cheapest Retailer
-
$6,809 USD
B
Retailer 2
-
$7,265 USD
View
B
Retailer 3
-
$7,272 USD
View
B
Retailer 4
-
$7,272 USD
View
Final sale: no returns
B
Retailer 5
-
$7,399 USD
View
B
Retailer 6
-
$7,878 USD
View
B
Retailer 7
-
$7,999 USD
View
B
Retailer 8
-
$8,048 USD
View
B+
Retailer 9
-
$8,104 USD
£6,381 GBP
View
Retailer 10
-
$8,234 USD
A$12,668 AUD
View
Price last confirmed 10 days ago
B
Retailer 11
-
$8,670 USD
View
B
Retailer 12
-
$8,670 USD
View
B
Retailer 13
-
$8,724 USD
View
B
Retailer 14
-
$8,790 USD
View
B
Retailer 15
-
$8,960 USD
View
B
Retailer 16
-
$9,090 USD
View
B
Retailer 17
-
$9,503 USD
€9,050 EUR
View
B
Retailer 18
-
$10,683 USD
ZAR 172,588 ZAR
View
B
Retailer 19
-
$12,120 USD
£9,543 GBP
View
Most Expensive
B
NZ Jewellers
46340976-d7d4-470f-9b56-6b02ff4253f8 · Oct 30
$14,544 USD
View
19 more retailers have this diamond
Prices start from $6,809 USDSave up to $7,735 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.

B+
1.51ct Oval
$6,809 USD