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Round|Natural|GIA

1.51ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 7513033079

Certificate GIA 7513033079

Diamond specifications and retailer prices

From $3,644 AUD
HK$20,000 HKD
As of November 1, 2026
Save $4,514 AUD (55%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,159 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round 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 and certified by GIA 7513033079. Listed at 14 retailers as of October 30, 2026, with prices from $3,644 to $8,159, a $4,514 spread on the same certified stone. NZ Jewellers lists it at $8,159. 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

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 7513033079
Dimensions7.38 × 7.35 × 4.55 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Cert comments
Clouds are not shown. Pinpoints are not shown.
Key to symbols
Crystal, Needle
Top View
7.38 mm7.35 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7513033079
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $8,159 AUD|Low: $3,608 AUD|High: $8,227 AUD|Avg: $5,279 AUD|-0.8%
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
November 2, 2026
Retailer 10$3,644 AUD
Retailer 6$3,712 AUD
Retailer 3$4,323 AUD
Retailer 5$4,537 AUD
Retailer 9$4,684 AUD
Retailer 12$4,863 AUD
Retailer 13$5,014 AUD
Retailer 4$5,061 AUD
Retailer 7$5,351 AUD
Retailer 11$5,404 AUD
Retailer 2$6,059 AUD
Retailer 8$7,832 AUD
NZ Jewellers$8,159 AUD

26 data points across 13 retailers

14 retailers$3,644 AUD to $8,159 AUD

A
Cheapest Retailer
-
$3,644 AUD
HK$20,000 HKD
A
Retailer 2
-
$3,712 AUD
₹248,324 INR
View
B+
Retailer 3
-
$4,323 AUD
$3,037 USD
View
Final sale: no returns
A
Retailer 4
-
$4,537 AUD
$3,187 USD
View
A
Retailer 5
-
$4,684 AUD
$3,290 USD
View
Retailer 6
-
$4,749 AUD
$3,336 USD
View
Price last confirmed 105 days ago
A
Retailer 7
-
$4,863 AUD
$3,416 USD
View
A
Retailer 8
-
$5,014 AUD
$3,522 USD
View
Retailer 9
-
$5,061 AUD
SGD 4,804 SGD
View
Price last confirmed 7 days ago
A
Retailer 10
-
$5,351 AUD
€3,580 EUR
View
A
Retailer 11
-
$5,404 AUD
$3,796 USD
View
B+
Retailer 12
-
$6,059 AUD
£3,352 GBP
View
B
Retailer 13
-
$7,832 AUD
£4,332 GBP
View
Most Expensive
B
NZ Jewellers
49506521-27cc-430f-8745-cf51fd62e9ed · Oct 30
$8,159 AUD
$5,731 USD
View
13 more retailers have this diamond
Prices start from $3,644 AUDSave up to $4,514 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.

A
1.51ct Round
$3,644 AUD