Oval|Natural|GIA

1.51ct J SI2 Oval Natural Diamond

EX • J/SI2 • GIA 6385389564

Certificate GIA 6385389564

Diamond specifications and retailer prices

From $5,717 USD
As of October 31, 2026
Save $5,583 USD (49%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $11,300 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6385389564. Listed at 18 retailers as of October 30, 2026, with prices from $5,717 to $11,300, a $5,583 spread on the same certified stone. NZ Jewellers lists it at $11,300. 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
J
Color
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6385389564
Dimensions9.41 × 6.49 × 3.87 mm
L/W Ratio1.45
Top View
9.41 mm6.49 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6385389564
Side View
Table 59.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 59.7%

Caratlytics Score

How it works →
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 31
Current: $6,519 USD|Low: $5,845 USD|High: $9,831 USD|Avg: $6,965 USD|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 5$5,845 USD
Retailer 3$6,027 USD
Retailer 7$6,106 USD
Retailer 1$6,519 USD
Retailer 6$6,860 USD
Retailer 4$7,384 USD
Retailer 2$9,714 USD

42 data points across 7 retailers

18 retailers$5,717 USD to $11,300 USD

B+
Cheapest Retailer
-
$5,717 USD
Retailer 2
-
$5,845 USD
View
Price last confirmed 13 days ago
B+
Retailer 3
-
$5,873 USD
View
B+
Retailer 4
-
$5,892 USD
View
B+
Retailer 5
-
$6,027 USD
£4,746 GBP
View
B
Retailer 6
-
$6,106 USD
View
B
Retailer 7
-
$6,236 USD
View
B
Retailer 8
-
$6,519 USD
£5,133 GBP
View
B
Retailer 9
-
$6,520 USD
View
B
Retailer 10
-
$6,520 USD
View
B
Retailer 11
-
$6,740 USD
View
B
Retailer 12
-
$6,756 USD
View
B
Retailer 13
-
$6,860 USD
View
B
Retailer 14
-
$6,916 USD
View
B
Retailer 15
-
$7,384 USD
€7,032 EUR
View
B
Retailer 16
-
$7,796 USD
View
B
Retailer 17
-
$9,714 USD
£7,649 GBP
View
Most Expensive
C
NZ Jewellers
b8b2ac1c-4272-4629-b448-ab994d4d6b2c · Oct 30
$11,300 USD
View
17 more retailers have this diamond
Prices start from $5,717 USDSave up to $5,583 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
$5,717 USD