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Cushion|Natural|GIA

1.51ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 2225656240

Certificate GIA 2225656240

Diamond specifications and retailer prices

From $9,809 CAD
$7,022 USD
As of November 2, 2026
Save $8,625 CAD (47%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $18,434 CAD at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two carat band, graded H 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 2225656240. Listed at 24 retailers as of November 1, 2026, with prices from $9,809 to $18,434, a $8,625 spread on the same certified stone. MOH London lists it at $18,434. 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

1.51
Carat
H
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.57°
Pavilion angle40.44°
OriginNatural
Grading LabGIA
CertificateGIA 2225656240
Dimensions6.79 × 6.63 × 4.44 mm
L/W Ratio1.02
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
6.79 mm6.63 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2225656240
Side View
Table 68.0%Crown 35.57°Girdle: THK-VTKPavilion 40.44°Culet: NoneDepth 67.0%

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: $18,434 CAD|Low: $9,640 CAD|High: $18,656 CAD|Avg: $12,648 CAD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 3$9,809 CAD
Retailer 7$9,869 CAD
Retailer 9$10,357 CAD
Retailer 10$11,061 CAD
Retailer 11$11,062 CAD
Retailer 8$11,153 CAD
Retailer 4$12,346 CAD
Retailer 6$12,472 CAD
Retailer 2$14,449 CAD
Retailer 5$16,250 CAD
MOH London$18,434 CAD

44 data points across 11 retailers

24 retailers$9,809 CAD to $18,434 CAD

B+
Cheapest Retailer
-
$9,809 CAD
$7,022 USD
B+
Retailer 2
-
$9,869 CAD
$7,065 USD
View
B
Retailer 3
-
$10,287 CAD
$7,364 USD
View
B
Retailer 4
-
$10,325 CAD
A$11,372 AUD
View
B
Retailer 5
-
$10,357 CAD
$7,414 USD
View
B
Retailer 6
-
$10,646 CAD
$7,621 USD
View
B
Retailer 7
-
$11,015 CAD
$7,885 USD
View
B
Retailer 8
-
$11,061 CAD
$7,918 USD
View
Final sale: no returns
B
Retailer 9
-
$11,062 CAD
$7,919 USD
View
B
Retailer 10
-
$11,153 CAD
$7,984 USD
View
B
Retailer 11
-
$11,787 CAD
$8,438 USD
View
B
Retailer 12
-
$11,888 CAD
View
B
Retailer 13
-
$12,147 CAD
A$13,378 AUD
View
B
Retailer 14
-
$12,175 CAD
$8,716 USD
View
B
Retailer 15
-
$12,346 CAD
£6,959 GBP
View
Retailer 16
-
$12,472 CAD
A$13,736 AUD
View
Price last confirmed 9 days ago
B
Retailer 17
-
$12,949 CAD
$9,270 USD
View
B
Retailer 18
-
$12,949 CAD
$9,270 USD
View
B
Retailer 19
-
$13,230 CAD
$9,471 USD
View
B
Retailer 20
-
$13,382 CAD
$9,580 USD
View
B
Retailer 21
-
$14,449 CAD
€9,851 EUR
View
Retailer 22
-
$14,563 CAD
$10,425 USD
View
Price last confirmed 10 days ago
B
Retailer 23
-
$16,250 CAD
ZAR 187,930 ZAR
View
Most Expensive
B
MOH London
2FED25E2D · Nov 1
$18,434 CAD
£10,391 GBP
View
23 more retailers have this diamond
Prices start from $9,809 CADSave up to $8,625 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+
1.51ct Cushion
$9,809 CAD