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Cushion|Natural|GIA

1.50ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 5543750463

Certificate GIA 5543750463

Diamond specifications and retailer prices

From $6,136 SGD
HK$37,500 HKD
As of October 31, 2026
Save $6,544 SGD (52%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $12,680 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5543750463. Listed at 19 retailers as of October 28, 2026, with prices from $6,136 to $12,680, a $6,544 spread on the same certified stone. Queensmith lists it at $12,680. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5543750463
Dimensions7.38 × 5.80 × 3.97 mm
L/W Ratio1.27
Top View
7.38 mm5.80 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5543750463
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 68.5%

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: Oct 31
Current: $12,680 SGD|Low: $6,087 SGD|High: $12,777 SGD|Avg: $8,494 SGD|+1.8%
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
Retailer 14
November 1, 2026
Retailer 11$6,136 SGD
Retailer 10$6,558 SGD
Retailer 13$6,852 SGD
Retailer 5$7,229 SGD
Retailer 3$7,470 SGD
Retailer 2$7,572 SGD
Retailer 8$7,764 SGD
Retailer 6$8,056 SGD
Retailer 4$8,295 SGD
Retailer 14$8,455 SGD
Retailer 12$8,843 SGD
Retailer 9$9,943 SGD
Retailer 7$11,923 SGD
Queensmith$12,680 SGD

23 data points across 14 retailers

19 retailers$6,136 SGD to $12,680 SGD

A
Cheapest Retailer
-
$6,136 SGD
HK$37,500 HKD
A
Retailer 2
-
$6,558 SGD
₹488,587 INR
View
A
Retailer 3
-
$6,852 SGD
$5,360 USD
View
Retailer 4
-
$7,044 SGD
View
Price last confirmed 18 days ago
A
Retailer 5
-
$7,229 SGD
View
A
Retailer 6
-
$7,470 SGD
$5,843 USD
View
Final sale: no returns
A
Retailer 7
-
$7,516 SGD
$5,879 USD
View
A
Retailer 8
-
$7,517 SGD
$5,880 USD
View
A
Retailer 9
-
$7,572 SGD
£4,664 GBP
View
A
Retailer 10
-
$7,764 SGD
£4,782 GBP
View
Retailer 11
-
$8,056 SGD
A$9,695 AUD
View
Price last confirmed 22 days ago
Retailer 12
-
$8,150 SGD
$6,375 USD
View
Price last confirmed 16 days ago
B+
Retailer 13
-
$8,295 SGD
$6,488 USD
View
B+
Retailer 14
-
$8,316 SGD
A$10,008 AUD
View
B+
Retailer 15
-
$8,455 SGD
$6,614 USD
View
B+
Retailer 16
-
$8,843 SGD
€6,588 EUR
View
B+
Retailer 17
-
$9,943 SGD
ZAR 125,655 ZAR
View
B+
Retailer 18
-
$11,923 SGD
£7,344 GBP
View
Most Expensive
B
Queensmith
5543750463 · Oct 28
$12,680 SGD
£7,810 GBP
View
18 more retailers have this diamond
Prices start from $6,136 SGDSave up to $6,544 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
$6,136 SGD