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Cushion|Natural|GIA

1.50ct G SI2 Cushion Natural Diamond

EX • G/SI2 • GIA 6522429378

Certificate GIA 6522429378

Diamond specifications and retailer prices

From $3,691 SGD
As of November 6, 2026
Save $4,297 SGD (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $9,986 SGD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.5ct natural cushion diamond

This 1.5ct 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 6522429378. Listed at 15 retailers as of November 4, 2026, with a 116% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.50
Carat
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6522429378
Dimensions7.93 × 5.59 × 3.76 mm
L/W Ratio1.42
Top View
7.93 mm5.59 mm1.50 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6522429378
Side View
Table 67.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 67.3%

Caratlytics Score

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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 6
Current: $9,986 SGD|Low: $3,658 SGD|High: $10,051 SGD|Avg: $5,476 SGD|+2.5%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 12$3,691 SGD
Retailer 2$3,918 SGD
Retailer 9$4,337 SGD
Retailer 4$4,420 SGD
Retailer 6$4,614 SGD
Retailer 8$4,650 SGD
Retailer 13$4,789 SGD
Retailer 10$4,960 SGD
Retailer 5$4,976 SGD
Retailer 3$5,125 SGD
Retailer 7$5,574 SGD
Retailer 11$7,988 SGD
Queensmith$9,986 SGD

25 data points across 13 retailers

15 retailers$3,691 SGD to $7,988 SGD

A
Cheapest Retailer
-
$3,691 SGD
A
Retailer 2
-
$3,918 SGD
View
A
Retailer 3
-
$4,337 SGD
View
A
Retailer 4
-
$4,420 SGD
View
Final sale: no returns
A
Retailer 5
-
$4,525 SGD
View
A
Retailer 6
-
$4,614 SGD
View
A
Retailer 7
-
$4,650 SGD
View
Retailer 8
-
$4,789 SGD
View
Price last confirmed 9 days ago
A
Retailer 9
-
$4,960 SGD
View
A
Retailer 10
-
$4,976 SGD
View
A
Retailer 11
-
$5,021 SGD
View
A
Retailer 12
-
$5,125 SGD
View
A
Retailer 13
-
$5,574 SGD
View
B+
Retailer 14
-
$7,988 SGD
View
Most Expensive
Queensmith
6522429378 · Oct 28
$9,986 SGD
£6,135 GBP
View
Price last confirmed 9 days ago
14 more retailers have this diamond
Prices start from $3,691 SGDSave up to $4,297 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
1.50ct Cushion
$3,691 SGD