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Cushion|Natural|GIA

1.51ct J SI2 Cushion Natural Diamond

EX • J/SI2 • GIA 2231947275

Certificate GIA 2231947275

Diamond specifications and retailer prices

From $2,709 AUD
$1,903 USD
As of November 1, 2026
Save $3,098 AUD (53%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $5,807 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion 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 2231947275. Listed at 15 retailers as of November 1, 2026, with prices from $2,709 to $5,807, a $3,098 spread on the same certified stone. MOH London lists it at $5,807. 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
PolishVery Good
SymmetryVery Good
FluorescenceNone
Pavilion angle36.21°
OriginNatural
Grading LabGIA
CertificateGIA 2231947275
Dimensions6.71 × 6.24 × 4.27 mm
L/W Ratio1.08
Key to symbols
Crystal, Feather, Needle
Top View
6.71 mm6.24 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2231947275
Side View
Table 59.0%CrownGirdle: STK-VTKPavilion 36.21°Culet: NoneDepth 68.5%

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: $5,807 AUD|Low: $1,822 AUD|High: $5,838 AUD|Avg: $3,101 AUD|+31.3%
MOH London
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
Retailer 18
November 2, 2026
Retailer 7$1,822 AUD
Retailer 8$2,548 AUD
Retailer 5$2,709 AUD
Retailer 4$2,713 AUD
Retailer 18$2,738 AUD
Retailer 16$2,769 AUD
Retailer 14$2,770 AUD
Retailer 6$2,802 AUD
Retailer 3$2,827 AUD
Retailer 15$2,897 AUD
Retailer 17$3,002 AUD
Retailer 2$3,474 AUD
Retailer 13$3,474 AUD
Retailer 9$3,502 AUD
Retailer 11$3,602 AUD
Retailer 12$3,638 AUD
Retailer 10$4,495 AUD
MOH London$5,807 AUD

19 data points across 18 retailers

15 retailers$2,709 AUD to $5,807 AUD

Retailer 1
-
$1,822 AUD
HK$10,000 HKD
Price last confirmed 35 days ago
A
Retailer 2
-
$2,709 AUD
$1,903 USD
View
B+
Retailer 3
-
$2,713 AUD
$1,906 USD
View
B+
Retailer 4
-
$2,738 AUD
$1,923 USD
View
B+
Retailer 5
-
$2,769 AUD
$1,945 USD
View
A
Retailer 6
-
$2,770 AUD
$1,946 USD
View
Final sale: no returns
Retailer 7
-
$2,802 AUD
$1,968 USD
View
Price last confirmed 11 days ago
B+
Retailer 8
-
$2,827 AUD
$1,986 USD
View
A
Retailer 9
-
$2,897 AUD
$2,035 USD
View
B+
Retailer 10
-
$3,002 AUD
$2,109 USD
View
B+
Retailer 11
-
$3,474 AUD
$2,440 USD
View
B+
Retailer 12
-
$3,474 AUD
$2,440 USD
View
B+
Retailer 13
-
$3,602 AUD
$2,530 USD
View
B+
Retailer 14
-
$3,638 AUD
£2,012 GBP
View
Most Expensive
B
MOH London
73C689494 · Nov 1
$5,807 AUD
£3,212 GBP
View
14 more retailers have this diamond
Prices start from $2,709 AUDSave up to $3,098 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 Cushion
$2,709 AUD