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Cushion|Natural|GIA

1.51ct F SI2 Cushion Natural Diamond

EX • F/SI2 • GIA 6243003386

Certificate GIA 6243003386

Diamond specifications and retailer prices

From $4,712 AUD
HK$25,800 HKD
As of November 1, 2026
Save $5,416 AUD (53%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $10,128 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6243003386. Listed at 8 retailers as of November 1, 2026, with prices from $4,712 to $10,128, a $5,416 spread on the same certified stone. MOH London lists it at $10,128. 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle37.55°
OriginNatural
Grading LabGIA
CertificateGIA 6243003386
Dimensions7.79 × 5.93 × 4.14 mm
L/W Ratio1.31
Key to symbols
Crystal, Feather, Needle
Top View
7.79 mm5.93 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6243003386
Side View
Table 65.0%CrownGirdle: MED-THKPavilion 37.55°Culet: NoneDepth 69.8%

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: $10,128 AUD|Low: $4,694 AUD|High: $11,873 AUD|Avg: $7,375 AUD|-14.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 4$4,712 AUD
Retailer 5$5,651 AUD
Retailer 2$5,992 AUD
Retailer 7$6,023 AUD
Retailer 6$6,778 AUD
Retailer 3$7,338 AUD
MOH London$10,128 AUD

45 data points across 7 retailers

8 retailers$4,712 AUD to $10,128 AUD

A
Cheapest Retailer
-
$4,712 AUD
HK$25,800 HKD
A
Retailer 2
-
$5,651 AUD
$3,960 USD
View
A
Retailer 3
-
$5,992 AUD
£3,306 GBP
View
A
Retailer 4
-
$6,023 AUD
SGD 5,704 SGD
View
A
Retailer 5
-
$6,778 AUD
$4,750 USD
View
A
Retailer 6
-
$7,307 AUD
View
A
Retailer 7
-
$7,338 AUD
€4,898 EUR
View
Most Expensive
B+
MOH London
5BD481C81 · Nov 2
$10,128 AUD
£5,589 GBP
View
7 more retailers have this diamond
Prices start from $4,712 AUDSave up to $5,416 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
$4,712 AUD