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Cushion|Natural|GIA

1.51ct J SI1 Cushion Natural Diamond

VG • J/SI1 • GIA 6432497417

Certificate GIA 6432497417

Diamond specifications and retailer prices

From $3,872 AUD
$2,714 USD
As of October 31, 2026
Save $4,562 AUD (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $8,434 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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6432497417. Listed at 21 retailers as of October 31, 2026, with prices from $3,872 to $8,434, a $4,562 spread on the same certified stone. MOH London lists it at $8,434. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6432497417
Dimensions6.46 × 6.16 × 4.23 mm
L/W Ratio1.05
Top View
6.46 mm6.16 mm1.51 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6432497417
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.7%

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: Oct 31
Current: $8,434 AUD|Low: $3,872 AUD|High: $8,535 AUD|Avg: $5,228 AUD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 10$3,872 AUD
Retailer 11$3,974 AUD
Retailer 7$4,210 AUD
Retailer 12$4,216 AUD
Retailer 9$4,431 AUD
Retailer 4$4,569 AUD
Retailer 2$4,852 AUD
Retailer 6$5,270 AUD
Retailer 3$5,402 AUD
Retailer 5$5,902 AUD
Retailer 8$6,199 AUD
MOH London$8,434 AUD

35 data points across 12 retailers

21 retailers$3,872 AUD to $8,434 AUD

A
Cheapest Retailer
-
$3,872 AUD
$2,714 USD
A
Retailer 2
-
$3,974 AUD
$2,785 USD
View
A
Retailer 3
-
$4,091 AUD
$2,867 USD
View
A
Retailer 4
-
$4,114 AUD
$2,883 USD
View
A
Retailer 5
-
$4,210 AUD
View
A
Retailer 6
-
$4,216 AUD
$2,955 USD
View
Final sale: no returns
B+
Retailer 7
-
$4,431 AUD
$3,105 USD
View
B+
Retailer 8
-
$4,565 AUD
$3,199 USD
View
Retailer 9
-
$4,569 AUD
$3,202 USD
View
Price last confirmed 25 days ago
B+
Retailer 10
-
$4,595 AUD
$3,220 USD
View
B+
Retailer 11
-
$4,852 AUD
£2,677 GBP
View
B+
Retailer 12
-
$4,911 AUD
$3,442 USD
View
B+
Retailer 13
-
$5,180 AUD
$3,630 USD
View
B+
Retailer 14
-
$5,180 AUD
$3,630 USD
View
B+
Retailer 15
-
$5,270 AUD
£2,908 GBP
View
B+
Retailer 16
-
$5,365 AUD
$3,760 USD
View
Retailer 17
-
$5,402 AUD
View
Price last confirmed 24 days ago
Retailer 18
-
$5,712 AUD
$4,003 USD
View
Price last confirmed 10 days ago
B+
Retailer 19
-
$5,902 AUD
€3,939 EUR
View
B
Retailer 20
-
$6,199 AUD
ZAR 70,180 ZAR
View
Most Expensive
B
MOH London
FD4BD3DA2 · Nov 1
$8,434 AUD
£4,654 GBP
View
20 more retailers have this diamond
Prices start from $3,872 AUDSave up to $4,562 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
$3,872 AUD