CaratHunter
Plans
Cushion|Natural|GIA

1.51ct I SI2 Cushion Natural Diamond

GD • I/SI2 • GIA 6541632661

Certificate GIA 6541632661

Diamond specifications and retailer prices

From $4,146 AUD
HK$22,700 HKD
As of November 2, 2026
Save $4,833 AUD (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $8,979 AUD at MOH London · As of November 2, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6541632661. Listed at 14 retailers as of November 2, 2026, with prices from $4,146 to $8,979, a $4,833 spread on the same certified stone. MOH London lists it at $8,979. 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
I
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle39.6°
OriginNatural
Grading LabGIA
CertificateGIA 6541632661
Dimensions7.12 × 6.18 × 4.32 mm
L/W Ratio1.15
Top View
7.12 mm6.18 mm1.51 ctI / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541632661
Side View
Table 70.0%CrownGirdle: THK-VTKPavilion 39.6°Culet: NoneDepth 69.9%

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 2
Current: $8,979 AUD|Low: $4,091 AUD|High: $9,824 AUD|Avg: $5,770 AUD|-7.6%
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
November 2, 2026
Retailer 8$4,146 AUD
Retailer 6$4,171 AUD
Retailer 13$4,373 AUD
Retailer 11$4,489 AUD
Retailer 3$4,538 AUD
Retailer 5$4,812 AUD
Retailer 2$4,935 AUD
Retailer 10$5,010 AUD
Retailer 7$5,094 AUD
Retailer 12$5,612 AUD
Retailer 9$6,285 AUD
Retailer 4$8,760 AUD
MOH London$8,979 AUD

34 data points across 13 retailers

14 retailers$4,146 AUD to $8,979 AUD

A
Cheapest Retailer
-
$4,146 AUD
HK$22,700 HKD
A
Retailer 2
-
$4,171 AUD
$2,923 USD
View
A
Retailer 3
-
$4,373 AUD
$3,065 USD
View
B+
Retailer 4
-
$4,489 AUD
$3,146 USD
View
Final sale: no returns
A
Retailer 5
-
$4,538 AUD
$3,180 USD
View
A
Retailer 6
-
$4,812 AUD
$3,372 USD
View
B+
Retailer 7
-
$4,935 AUD
View
B+
Retailer 8
-
$5,010 AUD
$3,511 USD
View
B+
Retailer 9
-
$5,094 AUD
$3,570 USD
View
B+
Retailer 10
-
$5,612 AUD
£3,097 GBP
View
B+
Retailer 11
-
$5,878 AUD
View
B+
Retailer 12
-
$6,285 AUD
€4,195 EUR
View
Retailer 13
-
$8,760 AUD
$6,139 USD
View
Price last confirmed 10 days ago
Most Expensive
B
MOH London
DC330760F · Nov 2
$8,979 AUD
£4,955 GBP
View
13 more retailers have this diamond
Prices start from $4,146 AUDSave up to $4,833 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
$4,146 AUD