Cushion|Natural|GIA

1.51ct I SI1 Cushion Natural Diamond

ID • I/SI1 • GIA 5242081367

Certificate GIA 5242081367

Diamond specifications and retailer prices

From $3,755 CAD
HK$21,000 HKD
As of October 31, 2026
Save $5,209 CAD (58%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $8,964 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 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 5242081367. Listed at 22 retailers as of October 31, 2026, with prices from $3,755 to $8,964, a $5,209 spread on the same certified stone. MOH London lists it at $8,964. 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
I
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5242081367
Dimensions6.70 × 6.32 × 4.35 mm
L/W Ratio1.06
Girdle conditionFaceted
Top View
6.70 mm6.32 mm1.51 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5242081367
Side View
Table 67.0%CrownGirdle: STK-VTKPavilionCulet: NDepth 68.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $8,964 CAD|Low: $3,576 CAD|High: $8,964 CAD|Avg: $5,272 CAD|+0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 1, 2026
Retailer 16$3,755 CAD
Retailer 10$3,904 CAD
Retailer 3$4,077 CAD
Retailer 5$4,108 CAD
Retailer 2$4,381 CAD
Retailer 18$4,382 CAD
Retailer 21$4,383 CAD
Retailer 7$4,483 CAD
Retailer 4$4,498 CAD
Retailer 8$4,561 CAD
Retailer 6$4,652 CAD
Retailer 13$4,819 CAD
Retailer 12$5,009 CAD
Retailer 19$5,102 CAD
Retailer 11$5,245 CAD
Retailer 20$5,507 CAD
Retailer 14$5,644 CAD
Retailer 17$6,027 CAD
Retailer 15$6,589 CAD
Retailer 9$7,926 CAD
MOH London$8,964 CAD

21 data points across 21 retailers

22 retailers$3,755 CAD to $8,964 CAD

A
Cheapest Retailer
-
$3,755 CAD
HK$21,000 HKD
A
Retailer 2
-
$3,904 CAD
$2,795 USD
View
A
Retailer 3
-
$4,077 CAD
$2,919 USD
View
A
Retailer 4
-
$4,108 CAD
$2,941 USD
View
A
Retailer 5
-
$4,381 CAD
€2,987 EUR
View
A
Retailer 6
-
$4,382 CAD
$3,137 USD
View
A
Retailer 7
-
$4,383 CAD
$3,138 USD
View
A
Retailer 8
-
$4,483 CAD
$3,209 USD
View
Final sale: no returns
A
Retailer 9
-
$4,498 CAD
$3,220 USD
View
A
Retailer 10
-
$4,561 CAD
$3,265 USD
View
A
Retailer 11
-
$4,652 CAD
$3,330 USD
View
A
Retailer 12
-
$4,819 CAD
£2,716 GBP
View
Retailer 13
-
$5,009 CAD
SGD 4,846 SGD
View
Price last confirmed 13 days ago
A
Retailer 14
-
$5,102 CAD
£2,876 GBP
View
Retailer 15
-
$5,160 CAD
€3,518 EUR
View
Price last confirmed 13 days ago
A
Retailer 16
-
$5,507 CAD
$3,942 USD
View
Retailer 17
-
$5,644 CAD
A$6,216 AUD
View
Price last confirmed 24 days ago
B+
Retailer 18
-
$6,027 CAD
€4,109 EUR
View
B+
Retailer 19
-
$6,589 CAD
ZAR 76,198 ZAR
View
Retailer 20
-
$7,731 CAD
$5,534 USD
View
Price last confirmed 13 days ago
B+
Retailer 21
-
$7,926 CAD
$5,674 USD
View
Most Expensive
B+
MOH London
83C7A565F · Nov 1
$8,964 CAD
£5,053 GBP
View
21 more retailers have this diamond
Prices start from $3,755 CADSave up to $5,209 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
$3,755 CAD