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Cushion|Natural|GIA

1.51ct G SI2 Cushion Natural Diamond

EX • G/SI2 • GIA 6545150584

Certificate GIA 6545150584

Diamond specifications and retailer prices

From $5,402 AUD
As of November 6, 2026
Save $6,309 AUD (54%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $11,711 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 G 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 6545150584. Listed at 8 retailers as of November 4, 2026, with prices from $5,402 to $11,711, a $6,309 spread on the same certified stone. MOH London lists it at $11,711. 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
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Pavilion angle35.24°
OriginNatural
Grading LabGIA
CertificateGIA 6545150584
Dimensions7.70 × 5.92 × 4.05 mm
L/W Ratio1.30
Top View
7.70 mm5.92 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6545150584
Side View
Table 62.0%CrownGirdle: MED-THKPavilion 35.24°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 6
Current: $11,711 AUD|Low: $5,402 AUD|High: $13,375 AUD|Avg: $8,300 AUD|-12.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 4$5,402 AUD
Retailer 5$6,493 AUD
Retailer 7$6,970 AUD
Retailer 2$7,012 AUD
Retailer 6$7,813 AUD
Retailer 3$8,261 AUD
MOH London$11,711 AUD

44 data points across 7 retailers

8 retailers$5,402 AUD to $11,711 AUD

A
Cheapest Retailer
-
$5,402 AUD
A
Retailer 2
-
$6,493 AUD
View
Retailer 3
-
$6,970 AUD
View
Price last confirmed 11 days ago
A
Retailer 4
-
$7,012 AUD
View
A
Retailer 5
-
$7,813 AUD
View
B+
Retailer 6
-
$8,261 AUD
View
B+
Retailer 7
-
$8,767 AUD
View
Most Expensive
B+
MOH London
CBEB73E5B · Nov 4
$11,711 AUD
£6,336 GBP
View
7 more retailers have this diamond
Prices start from $5,402 AUDSave up to $6,309 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
$5,402 AUD