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Cushion|Natural|GIA

1.60ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 5231955464

Certificate GIA 5231955464

Diamond specifications and retailer prices

From $5,452 SGD
A$6,558 AUD
As of November 2, 2026
3 retailers carry this diamond
Most expensive: $5,452 SGD at GemTrove
View at GemTrove

About this 1.6ct natural cushion diamond

This 1.6ct natural cushion sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5231955464. Listed at 3 retailers as of November 2, 2026. 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

1.60
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle36.41°
OriginNatural
Grading LabGIA
CertificateGIA 5231955464
Dimensions7.81 × 6.04 × 4.21 mm
L/W Ratio1.29
Key to symbols
Crystal, Feather, Needle
Top View
7.81 mm6.04 mm1.60 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231955464
Side View
Table 64.0%CrownGirdle: STK-VTKPavilion 36.41°Culet: NoneDepth 69.8%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: $5,452 SGD|Low: $4,387 SGD|High: $9,148 SGD|Avg: $5,563 SGD
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
September 19, 2026
Retailer 7$4,387 SGD
Retailer 5$4,471 SGD
Retailer 3$4,598 SGD
Retailer 4$4,934 SGD
Retailer 6$5,176 SGD
GemTrove$5,452 SGD
Retailer 8$6,663 SGD
Retailer 9$7,034 SGD
Retailer 2$9,148 SGD

2 data points across 9 retailers

3 retailers

Retailer 1
-
$4,387 SGD
HK$26,800 HKD
Price last confirmed 59 days ago
Retailer 2
-
$4,598 SGD
€3,424 EUR
View
Price last confirmed 44 days ago
Most Expensive
B+
GemTrove
GT-N-01247281-98 · Nov 2
$5,452 SGD
A$6,558 AUD
View
2 more retailers have this diamond

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+
1.60ct Cushion
$5,452 SGD