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Cushion|Natural|GIA

1.51ct L SI2 Cushion Natural Diamond

EX • L/SI2 • GIA 7551616311

Certificate GIA 7551616311

Diamond specifications and retailer prices

From $2,235 AUD
As of November 5, 2026
Save $572 AUD (20%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $2,808 AUD at GemTrove · As of November 6, 2026
View at GemTrove

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded L 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 7551616311. Listed at 3 retailers as of November 5, 2026, with prices from $2,235 to $2,808, a $572 spread on the same certified stone. GemTrove lists it at $2,808. 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
L
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7551616311
Dimensions6.40 × 6.18 × 4.29 mm
L/W Ratio1.04
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
6.40 mm6.18 mm1.51 ctL / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7551616311
Side View
Table 66.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 69.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $2,808 AUD|Low: $2,235 AUD|High: $2,808 AUD|Avg: $2,497 AUD
GemTrove
Retailer 2
Retailer 3
November 5, 2026
Retailer 3$2,235 AUD
Retailer 2$2,409 AUD
GemTrove$2,808 AUD

39 data points across 3 retailers

3 retailers$2,235 AUD to $2,808 AUD

A
Cheapest Retailer
-
$2,235 AUD
A
Retailer 2
-
$2,409 AUD
View
Most Expensive
B+
GemTrove
GT-N-00967885-98 · Nov 6
$2,808 AUD
View
2 more retailers have this diamond
Prices start from $2,235 AUDSave up to $572 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
$2,235 AUD