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Oval|Natural|GIA

1.51ct J SI2 Oval Natural Diamond

EX • J/SI2 • GIA 6385389564

Certificate GIA 6385389564

Diamond specifications and retailer prices

From $10,144 NZD
$5,717 USD
As of October 31, 2026
Save $9,906 NZD (49%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $20,050 NZD 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 $10,144 to $20,050, a $9,906 spread on the same certified stone. NZ Jewellers lists it at $20,050. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $11,567 NZD|Low: $10,371 NZD|High: $17,443 NZD|Avg: $12,326 NZD|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 5$10,371 NZD
Retailer 3$10,693 NZD
Retailer 7$10,834 NZD
Retailer 1$11,567 NZD
Retailer 6$12,172 NZD
Retailer 2$13,095 NZD
Retailer 4$17,236 NZD

42 data points across 7 retailers

18 retailers$10,144 NZD to $20,050 NZD

B+
Cheapest Retailer
-
$10,144 NZD
$5,717 USD
Retailer 2
-
$10,371 NZD
$5,845 USD
View
Price last confirmed 14 days ago
B+
Retailer 3
-
$10,420 NZD
$5,873 USD
View
B+
Retailer 4
-
$10,454 NZD
$5,892 USD
View
B+
Retailer 5
-
$10,693 NZD
£4,746 GBP
View
B
Retailer 6
-
$10,834 NZD
$6,106 USD
View
B
Retailer 7
-
$11,065 NZD
$6,236 USD
View
B
Retailer 8
-
$11,567 NZD
£5,133 GBP
View
B
Retailer 9
-
$11,568 NZD
$6,520 USD
View
B
Retailer 10
-
$11,568 NZD
$6,520 USD
View
B
Retailer 11
-
$11,959 NZD
$6,740 USD
View
B
Retailer 12
-
$11,987 NZD
$6,756 USD
View
B
Retailer 13
-
$12,172 NZD
$6,860 USD
View
B
Retailer 14
-
$12,271 NZD
$6,916 USD
View
B
Retailer 15
-
$13,095 NZD
€7,029 EUR
View
B
Retailer 16
-
$13,832 NZD
$7,796 USD
View
B
Retailer 17
-
$17,236 NZD
£7,649 GBP
View
Most Expensive
C
NZ Jewellers
b8b2ac1c-4272-4629-b448-ab994d4d6b2c · Oct 30
$20,050 NZD
$11,300 USD
View
17 more retailers have this diamond
Prices start from $10,144 NZDSave up to $9,906 NZD

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
$10,144 NZD