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Cushion|Natural|GIA

1.50ct D SI1 Cushion Natural Diamond

EX • D/SI1 • GIA 1553672759

Certificate GIA 1553672759

Diamond specifications and retailer prices

From $6,644 SGD
HK$40,600 HKD
As of November 1, 2026
Save $6,662 SGD (50%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $13,305 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 1553672759. Listed at 19 retailers as of October 28, 2026, with prices from $6,644 to $13,305, a $6,662 spread on the same certified stone. Queensmith lists it at $13,305. 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
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1553672759
Dimensions7.87 × 5.92 × 4.06 mm
L/W Ratio1.33
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural, Knot, Needle, Extra Facet
Top View
7.87 mm5.92 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1553672759
Side View
Table 65.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 68.6%

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: $13,305 SGD|Low: $6,594 SGD|High: $13,411 SGD|Avg: $9,239 SGD|+1.7%
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 1, 2026
Retailer 10$6,644 SGD
Retailer 2$7,086 SGD
Retailer 12$7,410 SGD
Retailer 5$7,830 SGD
Retailer 13$8,178 SGD
Retailer 6$8,290 SGD
Retailer 8$8,498 SGD
Retailer 3$8,680 SGD
Retailer 4$9,066 SGD
Retailer 11$9,682 SGD
Retailer 9$10,887 SGD
Retailer 7$13,053 SGD
Queensmith$13,305 SGD

23 data points across 13 retailers

19 retailers$6,644 SGD to $13,305 SGD

A
Cheapest Retailer
-
$6,644 SGD
HK$40,600 HKD
A
Retailer 2
-
$7,086 SGD
₹527,890 INR
View
A
Retailer 3
-
$7,410 SGD
$5,796 USD
View
Retailer 4
-
$7,632 SGD
View
Price last confirmed 18 days ago
A
Retailer 5
-
$7,830 SGD
View
B+
Retailer 6
-
$8,141 SGD
$6,368 USD
View
B+
Retailer 7
-
$8,143 SGD
$6,370 USD
View
B+
Retailer 8
-
$8,178 SGD
$6,397 USD
View
Final sale: no returns
Retailer 9
-
$8,232 SGD
$6,439 USD
View
Price last confirmed 16 days ago
B+
Retailer 10
-
$8,290 SGD
£5,106 GBP
View
B+
Retailer 11
-
$8,498 SGD
£5,234 GBP
View
B+
Retailer 12
-
$8,680 SGD
$6,790 USD
View
Retailer 13
-
$8,745 SGD
A$10,524 AUD
View
Price last confirmed 28 days ago
B+
Retailer 14
-
$9,066 SGD
$7,091 USD
View
B+
Retailer 15
-
$9,313 SGD
A$11,208 AUD
View
B+
Retailer 16
-
$9,682 SGD
€7,213 EUR
View
B+
Retailer 17
-
$10,887 SGD
ZAR 137,573 ZAR
View
B
Retailer 18
-
$13,053 SGD
£8,040 GBP
View
Most Expensive
B
Queensmith
1553672759 · Oct 28
$13,305 SGD
£8,195 GBP
View
18 more retailers have this diamond
Prices start from $6,644 SGDSave up to $6,662 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
$6,644 SGD