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Cushion|Natural|GIA

1.51ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 1425256232

Certificate GIA 1425256232

Diamond specifications and retailer prices

From $6,468 CAD
$4,630 USD
As of October 31, 2026
Save $6,178 CAD (49%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $12,646 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 G 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 1425256232. Listed at 20 retailers as of October 31, 2026, with prices from $6,468 to $12,646, a $6,178 spread on the same certified stone. MOH London lists it at $12,646. 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
G
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1425256232
Dimensions6.16 × 6.04 × 4.61 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle, Indented Natural
Top View
6.16 mm6.04 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1425256232
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 76.4%

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: Oct 31
Current: $12,646 CAD|Low: $6,219 CAD|High: $12,798 CAD|Avg: $8,642 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
Retailer 12
November 1, 2026
Retailer 11$6,468 CAD
Retailer 4$6,782 CAD
Retailer 7$6,838 CAD
Retailer 9$6,841 CAD
Retailer 12$7,278 CAD
Retailer 8$7,777 CAD
Retailer 2$8,235 CAD
Retailer 10$8,530 CAD
Retailer 6$9,380 CAD
Retailer 5$10,546 CAD
Retailer 3$12,437 CAD
MOH London$12,646 CAD

44 data points across 12 retailers

20 retailers$6,468 CAD to $12,646 CAD

A
Cheapest Retailer
-
$6,468 CAD
$4,630 USD
A
Retailer 2
-
$6,705 CAD
$4,800 USD
View
A
Retailer 3
-
$6,782 CAD
$4,855 USD
View
A
Retailer 4
-
$6,838 CAD
$4,895 USD
View
A
Retailer 5
-
$6,841 CAD
$4,897 USD
View
Final sale: no returns
A
Retailer 6
-
$6,868 CAD
$4,917 USD
View
A
Retailer 7
-
$7,236 CAD
View
A
Retailer 8
-
$7,278 CAD
$5,210 USD
View
B+
Retailer 9
-
$7,303 CAD
$5,228 USD
View
B+
Retailer 10
-
$7,683 CAD
$5,500 USD
View
B+
Retailer 11
-
$7,777 CAD
$5,567 USD
View
B+
Retailer 12
-
$8,197 CAD
$5,868 USD
View
B+
Retailer 13
-
$8,235 CAD
£4,642 GBP
View
Retailer 14
-
$8,530 CAD
A$9,394 AUD
View
Price last confirmed 29 days ago
B+
Retailer 15
-
$9,380 CAD
€6,395 EUR
View
Retailer 16
-
$9,465 CAD
$6,776 USD
View
Price last confirmed 10 days ago
B
Retailer 17
-
$9,722 CAD
$6,960 USD
View
B+
Retailer 18
-
$10,546 CAD
ZAR 121,964 ZAR
View
B
Retailer 19
-
$12,437 CAD
$8,903 USD
View
Most Expensive
B
MOH London
C97E3DB6C · Nov 1
$12,646 CAD
£7,128 GBP
View
19 more retailers have this diamond
Prices start from $6,468 CADSave up to $6,178 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.

A
1.51ct Cushion
$6,468 CAD