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Round|Natural|GIA

1.51ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 7566111843

Certificate GIA 7566111843

Diamond specifications and retailer prices

From $4,945 AUD
As of November 4, 2026
Save $3,794 AUD (43%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $11,715 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 7566111843. Listed at 18 retailers as of November 4, 2026, with a 77% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7566111843
Dimensions7.33 × 7.30 × 4.59 mm
L/W Ratio1.00
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Cavity, Needle
Top View
7.33 mm7.30 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7566111843
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: NDepth 62.7%

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 4
Current: $11,715 AUD|Low: $4,945 AUD|High: $13,714 AUD|Avg: $7,636 AUD|-1.9%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 3$4,945 AUD
Retailer 16$5,414 AUD
Retailer 17$5,677 AUD
Retailer 10$6,598 AUD
Retailer 12$6,643 AUD
Retailer 5$6,724 AUD
Retailer 6$6,724 AUD
Retailer 8$6,724 AUD
Retailer 14$6,857 AUD
Retailer 15$6,857 AUD
Retailer 4$6,938 AUD
Retailer 11$7,085 AUD
Retailer 13$7,627 AUD
Retailer 9$7,758 AUD
Retailer 2$8,740 AUD
Retailer 7$10,767 AUD
NZ Jewellers$11,715 AUD

23 data points across 17 retailers

18 retailers$4,945 AUD to $8,740 AUD

A
Cheapest Retailer
-
$4,945 AUD
A
Retailer 2
-
$5,414 AUD
View
B+
Retailer 3
-
$5,677 AUD
View
Final sale: no returns
B+
Retailer 4
-
$6,598 AUD
View
B+
Retailer 5
-
$6,643 AUD
View
Retailer 6
-
$6,724 AUD
View
Price last confirmed 8 days ago
Retailer 7
-
$6,724 AUD
View
Price last confirmed 8 days ago
Retailer 8
-
$6,724 AUD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
$6,857 AUD
View
B+
Retailer 10
-
$6,857 AUD
View
Retailer 11
-
$6,938 AUD
View
Price last confirmed 7 days ago
Retailer 12
-
$7,028 AUD
View
Price last confirmed 38 days ago
B+
Retailer 13
-
$7,085 AUD
View
B
Retailer 14
-
$7,627 AUD
View
B
Retailer 15
-
$7,758 AUD
View
B
Retailer 16
-
$8,740 AUD
View
Retailer 17
-
$10,767 AUD
View
Price last confirmed 8 days ago
Most Expensive
NZ Jewellers
0758b436-926d-41b7-9da1-32895e0537e0 · Oct 30
$11,715 AUD
$8,201 USD
View
Price last confirmed 7 days ago
17 more retailers have this diamond
Prices start from $4,945 AUDSave up to $3,794 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
$4,945 AUD