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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 $8,139 AUD
$5,717 USD
As of October 31, 2026
Save $7,948 AUD (49%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $16,087 AUD 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 $8,139 to $16,087, a $7,948 spread on the same certified stone. NZ Jewellers lists it at $16,087. 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: $8,580 AUD|Low: $8,321 AUD|High: $13,996 AUD|Avg: $9,916 AUD|+1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 5$8,321 AUD
Retailer 1$8,580 AUD
Retailer 7$8,693 AUD
Retailer 2$9,281 AUD
Retailer 6$9,766 AUD
Retailer 4$10,511 AUD
Retailer 3$13,829 AUD

42 data points across 7 retailers

18 retailers$8,139 AUD to $16,087 AUD

B+
Cheapest Retailer
-
$8,139 AUD
$5,717 USD
Retailer 2
-
$8,321 AUD
$5,845 USD
View
Price last confirmed 14 days ago
B+
Retailer 3
-
$8,361 AUD
$5,873 USD
View
B+
Retailer 4
-
$8,388 AUD
$5,892 USD
View
B+
Retailer 5
-
$8,580 AUD
£4,746 GBP
View
B
Retailer 6
-
$8,693 AUD
$6,106 USD
View
B
Retailer 7
-
$8,878 AUD
$6,236 USD
View
B
Retailer 8
-
$9,281 AUD
£5,133 GBP
View
B
Retailer 9
-
$9,282 AUD
$6,520 USD
View
B
Retailer 10
-
$9,282 AUD
$6,520 USD
View
B
Retailer 11
-
$9,595 AUD
$6,740 USD
View
B
Retailer 12
-
$9,618 AUD
$6,756 USD
View
B
Retailer 13
-
$9,766 AUD
$6,860 USD
View
B
Retailer 14
-
$9,845 AUD
$6,916 USD
View
B
Retailer 15
-
$10,511 AUD
€7,032 EUR
View
B
Retailer 16
-
$11,098 AUD
$7,796 USD
View
B
Retailer 17
-
$13,829 AUD
£7,649 GBP
View
Most Expensive
C
NZ Jewellers
b8b2ac1c-4272-4629-b448-ab994d4d6b2c · Oct 30
$16,087 AUD
$11,300 USD
View
17 more retailers have this diamond
Prices start from $8,139 AUDSave up to $7,948 AUD

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
$8,139 AUD