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Cushion|Natural|GIA

1.51ct F SI2 Cushion Natural Diamond

EX • F/SI2 • GIA 5543528221

Certificate GIA 5543528221

Diamond specifications and retailer prices

From $4,895 SGD
HK$29,900 HKD
As of November 1, 2026
Save $6,450 SGD (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $11,345 SGD at Queensmith · As of October 28, 2026
View at Queensmith

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 5543528221. Listed at 13 retailers as of October 28, 2026, with prices from $4,895 to $11,345, a $6,450 spread on the same certified stone. Queensmith lists it at $11,345. 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
OriginNatural
Grading LabGIA
CertificateGIA 5543528221
Dimensions7.60 × 5.85 × 4.07 mm
L/W Ratio1.30
Top View
7.60 mm5.85 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5543528221
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.6%

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: $11,345 SGD|Low: $4,845 SGD|High: $11,426 SGD|Avg: $7,203 SGD|+1.7%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 7$4,895 SGD
Retailer 2$5,235 SGD
Retailer 3$5,766 SGD
Retailer 9$5,969 SGD
Retailer 5$6,431 SGD
Retailer 8$6,467 SGD
Retailer 10$6,535 SGD
Retailer 11$6,661 SGD
Retailer 4$7,317 SGD
Retailer 6$10,301 SGD
Queensmith$11,345 SGD

32 data points across 11 retailers

13 retailers$4,895 SGD to $11,345 SGD

A
Cheapest Retailer
-
$4,895 SGD
HK$29,900 HKD
A
Retailer 2
-
$5,235 SGD
₹389,880 INR
View
A
Retailer 3
-
$5,766 SGD
View
A
Retailer 4
-
$5,969 SGD
$4,667 USD
View
Final sale: no returns
A
Retailer 5
-
$5,995 SGD
$4,688 USD
View
A
Retailer 6
-
$6,431 SGD
£3,959 GBP
View
A
Retailer 7
-
$6,467 SGD
$5,057 USD
View
A
Retailer 8
-
$6,535 SGD
$5,110 USD
View
A
Retailer 9
-
$6,661 SGD
$5,209 USD
View
B+
Retailer 10
-
$6,782 SGD
A$8,158 AUD
View
B+
Retailer 11
-
$7,317 SGD
€5,449 EUR
View
B+
Retailer 12
-
$10,301 SGD
£6,342 GBP
View
Most Expensive
B
Queensmith
5543528221 · Oct 28
$11,345 SGD
£6,985 GBP
View
12 more retailers have this diamond
Prices start from $4,895 SGDSave up to $6,450 SGD

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
$4,895 SGD