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Oval|Natural|GIA

1.51ct D SI2 Oval Natural Diamond

ID • D/SI2 • GIA 2231615608

Certificate GIA 2231615608

Diamond specifications and retailer prices

From $5,935 USD
As of October 29, 2026
Save $7,155 USD (55%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $13,090 USD at NZ Jewellers · As of October 27, 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 2231615608. Listed at 22 retailers as of October 27, 2026, with prices from $5,935 to $13,090, a $7,155 spread on the same certified stone. NZ Jewellers lists it at $13,090. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle40.37°
Pavilion angle39.57°
OriginNatural
Grading LabGIA
CertificateGIA 2231615608
Dimensions8.61 × 6.24 × 4.15 mm
L/W Ratio1.38
Girdle conditionExtremely Thick
Key to symbols
Crystal, Feather, Needle
Top View
8.61 mm6.24 mm1.51 ctD / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2231615608
Side View
Table 55.0%Crown 40.37°Girdle: STK-ETKPavilion 39.57°Culet: NoneDepth 66.5%

Caratlytics Score

How it works →
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 29
Current: $7,417 USD|Low: $5,160 USD|High: $11,039 USD|Avg: $7,291 USD|-0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 8$5,935 USD
Retailer 6$6,192 USD
Retailer 2$6,545 USD
Retailer 7$6,545 USD
Retailer 10$7,175 USD
Retailer 5$7,345 USD
Retailer 1$7,417 USD
Retailer 9$7,889 USD
Retailer 4$8,078 USD
Retailer 3$10,965 USD

37 data points across 10 retailers

22 retailers$5,935 USD to $13,090 USD

A
Cheapest Retailer
-
$5,935 USD
A
Retailer 2
-
$6,062 USD
View
A
Retailer 3
-
$6,184 USD
View
A
Retailer 4
-
$6,192 USD
View
A
Retailer 5
-
$6,269 USD
View
A
Retailer 6
-
$6,545 USD
View
Final sale: no returns
A
Retailer 7
-
$6,545 USD
View
A
Retailer 8
-
$6,969 USD
View
A
Retailer 9
-
$7,090 USD
View
A
Retailer 10
-
$7,175 USD
A$11,038 AUD
View
A
Retailer 11
-
$7,199 USD
View
A
Retailer 12
-
$7,345 USD
£5,784 GBP
View
B+
Retailer 13
-
$7,353 USD
View
A
Retailer 14
-
$7,417 USD
£5,840 GBP
View
B+
Retailer 15
-
$7,850 USD
View
B+
Retailer 16
-
$7,850 USD
View
B+
Retailer 17
-
$7,889 USD
View
B+
Retailer 18
-
$8,078 USD
€7,693 EUR
View
B+
Retailer 19
-
$8,110 USD
View
B+
Retailer 20
-
$8,181 USD
View
B+
Retailer 21
-
$10,965 USD
£8,634 GBP
View
Most Expensive
B
NZ Jewellers
ff2703fb-317d-4269-8f8b-875e1eded4cb · Oct 27
$13,090 USD
View
21 more retailers have this diamond
Prices start from $5,935 USDSave up to $7,155 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
$5,935 USD