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Cushion|Natural|GIA

1.50ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 1517368138

Certificate GIA 1517368138

Diamond specifications and retailer prices

From $7,276 SGD
$5,689 USD
As of November 2, 2026
Save $6,351 SGD (47%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $13,627 SGD at MOH London · As of November 1, 2026
View at MOH London

About this 1.5ct natural cushion diamond

This 1.5ct 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 1517368138. Listed at 28 retailers as of November 1, 2026, with prices from $7,276 to $13,627, a $6,351 spread on the same certified stone. MOH London lists it at $13,627. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.9°
Pavilion angle34.91°
OriginNatural
Grading LabGIA
CertificateGIA 1517368138
Dimensions7.47 × 5.79 × 4.04 mm
L/W Ratio1.29
Key to symbols
Crystal, Needle
Top View
7.47 mm5.79 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1517368138
Side View
Table 65.0%Crown 41.9°Girdle: THK-VTKPavilion 34.91°Culet: NoneDepth 69.7%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: $13,627 SGD|Low: $7,276 SGD|High: $13,791 SGD|Avg: $9,704 SGD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 10$7,276 SGD
Retailer 8$7,648 SGD
Retailer 9$7,799 SGD
Retailer 6$8,177 SGD
Retailer 4$9,219 SGD
Retailer 2$9,278 SGD
Retailer 7$9,427 SGD
Retailer 3$10,093 SGD
Retailer 5$12,014 SGD
MOH London$13,627 SGD

44 data points across 10 retailers

28 retailers$7,276 SGD to $13,627 SGD

B+
Cheapest Retailer
-
$7,276 SGD
$5,689 USD
B+
Retailer 2
-
$7,574 SGD
$5,922 USD
View
B+
Retailer 3
-
$7,596 SGD
A$9,137 AUD
View
Retailer 4
-
$7,648 SGD
$5,980 USD
View
Price last confirmed 14 days ago
B+
Retailer 5
-
$7,725 SGD
$6,040 USD
View
B+
Retailer 6
-
$7,799 SGD
$6,098 USD
View
Final sale: no returns
B+
Retailer 7
-
$7,831 SGD
$6,124 USD
View
B+
Retailer 8
-
$8,122 SGD
CA$8,820 CAD
View
B+
Retailer 9
-
$8,177 SGD
$6,394 USD
View
B+
Retailer 10
-
$8,204 SGD
$6,415 USD
View
B+
Retailer 11
-
$8,321 SGD
$6,506 USD
View
B
Retailer 12
-
$8,711 SGD
$6,811 USD
View
B
Retailer 13
-
$9,024 SGD
$7,056 USD
View
B
Retailer 14
-
$9,176 SGD
$7,175 USD
View
B
Retailer 15
-
$9,219 SGD
£5,676 GBP
View
B
Retailer 16
-
$9,278 SGD
£5,712 GBP
View
B
Retailer 17
-
$9,346 SGD
$7,308 USD
View
Retailer 18
-
$9,427 SGD
A$11,340 AUD
View
Price last confirmed 11 days ago
B
Retailer 19
-
$9,566 SGD
A$11,508 AUD
View
B
Retailer 20
-
$9,822 SGD
$7,680 USD
View
B
Retailer 21
-
$9,822 SGD
$7,680 USD
View
B
Retailer 22
-
$9,855 SGD
$7,706 USD
View
B
Retailer 23
-
$10,093 SGD
€7,516 EUR
View
B
Retailer 24
-
$10,154 SGD
$7,940 USD
View
B
Retailer 25
-
$10,765 SGD
$8,417 USD
View
Retailer 26
-
$10,773 SGD
$8,424 USD
View
Price last confirmed 10 days ago
B
Retailer 27
-
$12,014 SGD
ZAR 151,755 ZAR
View
Most Expensive
B
MOH London
FF8EED978 · Nov 1
$13,627 SGD
£8,390 GBP
View
27 more retailers have this diamond
Prices start from $7,276 SGDSave up to $6,351 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.

B+
1.50ct Cushion
$7,276 SGD