CaratHunter
Plans
Cushion|Natural|GIA

1.51ct K SI2 Cushion Natural Diamond

EX • K/SI2 • GIA 7548880540

Certificate GIA 7548880540

Diamond specifications and retailer prices

From $5,292 AUD
As of November 6, 2026
Save $4,739 AUD (47%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $10,031 AUD at MOH London · As of November 4, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7548880540. Listed at 6 retailers as of November 4, 2026, with prices from $5,292 to $10,031, a $4,739 spread on the same certified stone. MOH London lists it at $10,031. 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
K
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle35.59°
OriginNatural
Grading LabGIA
CertificateGIA 7548880540
Dimensions7.63 × 5.89 × 4.08 mm
L/W Ratio1.30
Key to symbols
Crystal, Cloud, Needle
Top View
7.63 mm5.89 mm1.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7548880540
Side View
Table 64.0%CrownGirdle: MED-VTKPavilion 35.59°Culet: NoneDepth 69.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $10,031 AUD|Low: $5,292 AUD|High: $10,179 AUD|Avg: $6,702 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 7$5,292 AUD
Retailer 4$5,529 AUD
Retailer 2$5,935 AUD
Retailer 6$6,229 AUD
Retailer 3$6,395 AUD
Retailer 5$7,156 AUD
MOH London$10,031 AUD

30 data points across 7 retailers

6 retailers$5,292 AUD to $10,031 AUD

B+
Cheapest Retailer
-
$5,292 AUD
B+
Retailer 2
-
$5,529 AUD
View
B+
Retailer 3
-
$5,935 AUD
View
B
Retailer 4
-
$6,229 AUD
View
B
Retailer 5
-
$6,395 AUD
View
Most Expensive
B
MOH London
CF5B4A5F7 · Nov 4
$10,031 AUD
£5,427 GBP
View
5 more retailers have this diamond
Prices start from $5,292 AUDSave up to $4,739 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.

B+
1.51ct Cushion
$5,292 AUD