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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 $7,947 CAD
$5,689 USD
As of October 31, 2026
Save $6,937 CAD (47%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: $14,884 CAD 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 October 31, 2026, with prices from $7,947 to $14,884, a $6,937 spread on the same certified stone. MOH London lists it at $14,884. 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
Color
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: Oct 31
Current: $14,884 CAD|Low: $7,947 CAD|High: $15,064 CAD|Avg: $10,600 CAD|-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$7,947 CAD
Retailer 8$8,353 CAD
Retailer 9$8,518 CAD
Retailer 6$8,932 CAD
Retailer 4$10,069 CAD
Retailer 2$10,134 CAD
Retailer 7$10,297 CAD
Retailer 3$11,024 CAD
Retailer 5$13,122 CAD
MOH London$14,884 CAD

44 data points across 10 retailers

28 retailers$7,947 CAD to $14,884 CAD

B+
Cheapest Retailer
-
$7,947 CAD
$5,689 USD
B+
Retailer 2
-
$8,272 CAD
$5,922 USD
View
B+
Retailer 3
-
$8,297 CAD
A$9,137 AUD
View
Retailer 4
-
$8,353 CAD
$5,980 USD
View
Price last confirmed 14 days ago
B+
Retailer 5
-
$8,437 CAD
$6,040 USD
View
B+
Retailer 6
-
$8,518 CAD
$6,098 USD
View
Final sale: no returns
B+
Retailer 7
-
$8,554 CAD
$6,124 USD
View
B+
Retailer 8
-
$8,871 CAD
View
B+
Retailer 9
-
$8,932 CAD
$6,394 USD
View
B+
Retailer 10
-
$8,961 CAD
$6,415 USD
View
B+
Retailer 11
-
$9,088 CAD
$6,506 USD
View
B
Retailer 12
-
$9,515 CAD
$6,811 USD
View
B
Retailer 13
-
$9,857 CAD
$7,056 USD
View
B
Retailer 14
-
$10,023 CAD
$7,175 USD
View
B
Retailer 15
-
$10,069 CAD
£5,676 GBP
View
B
Retailer 16
-
$10,134 CAD
£5,712 GBP
View
B
Retailer 17
-
$10,209 CAD
$7,308 USD
View
Retailer 18
-
$10,297 CAD
A$11,340 AUD
View
Price last confirmed 11 days ago
B
Retailer 19
-
$10,449 CAD
A$11,508 AUD
View
B
Retailer 20
-
$10,728 CAD
$7,680 USD
View
B
Retailer 21
-
$10,728 CAD
$7,680 USD
View
B
Retailer 22
-
$10,765 CAD
$7,706 USD
View
B
Retailer 23
-
$11,024 CAD
€7,516 EUR
View
B
Retailer 24
-
$11,091 CAD
$7,940 USD
View
B
Retailer 25
-
$11,758 CAD
$8,417 USD
View
Retailer 26
-
$11,767 CAD
$8,424 USD
View
Price last confirmed 10 days ago
B
Retailer 27
-
$13,122 CAD
ZAR 151,755 ZAR
View
Most Expensive
B
MOH London
FF8EED978 · Nov 1
$14,884 CAD
£8,390 GBP
View
27 more retailers have this diamond
Prices start from $7,947 CADSave up to $6,937 CAD

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
$7,947 CAD