Cushion|Natural|GIA

1.51ct H SI1 Cushion Natural Diamond

VG • H/SI1 • GIA 1428687763

Certificate GIA 1428687763

Diamond specifications and retailer prices

From $6,803 CAD
$4,868 USD
As of November 2, 2026
Save $7,856 CAD (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $14,659 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1428687763. Listed at 19 retailers as of November 1, 2026, with prices from $6,803 to $14,659, a $7,856 spread on the same certified stone. MOH London lists it at $14,659. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
H
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1428687763
Dimensions6.69 × 5.94 × 4.13 mm
L/W Ratio1.13
Culet sizeNone
Top View
6.69 mm5.94 mm1.51 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1428687763
Side View
Table 61.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.5%

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: $14,659 CAD|Low: $7,331 CAD|High: $14,836 CAD|Avg: $10,277 CAD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 3$7,501 CAD
Retailer 6$8,238 CAD
Retailer 7$8,797 CAD
Retailer 8$8,797 CAD
Retailer 5$10,210 CAD
Retailer 2$11,490 CAD
Retailer 4$12,924 CAD
MOH London$14,659 CAD

44 data points across 8 retailers

19 retailers$6,803 CAD to $14,659 CAD

B+
Cheapest Retailer
-
$6,803 CAD
$4,868 USD
B+
Retailer 2
-
$7,501 CAD
£4,227 GBP
View
B+
Retailer 3
-
$7,564 CAD
$5,413 USD
View
B+
Retailer 4
-
$8,063 CAD
$5,770 USD
View
B+
Retailer 5
-
$8,063 CAD
$5,770 USD
View
B+
Retailer 6
-
$8,238 CAD
$5,895 USD
View
B
Retailer 7
-
$8,310 CAD
$5,947 USD
View
B
Retailer 8
-
$8,329 CAD
$5,960 USD
View
B
Retailer 9
-
$8,797 CAD
$6,295 USD
View
Final sale: no returns
B
Retailer 10
-
$8,797 CAD
$6,295 USD
View
B
Retailer 11
-
$8,832 CAD
$6,320 USD
View
B+
Retailer 12
-
$8,950 CAD
$6,405 USD
View
B
Retailer 13
-
$9,374 CAD
$6,708 USD
View
B
Retailer 14
-
$10,086 CAD
$7,218 USD
View
Retailer 15
-
$10,210 CAD
A$11,240 AUD
View
Price last confirmed 11 days ago
B
Retailer 16
-
$11,490 CAD
€7,831 EUR
View
Retailer 17
-
$11,590 CAD
$8,294 USD
View
Price last confirmed 10 days ago
B
Retailer 18
-
$12,924 CAD
ZAR 149,411 ZAR
View
Most Expensive
B
MOH London
86C3866EA · Nov 1
$14,659 CAD
£8,260 GBP
View
18 more retailers have this diamond
Prices start from $6,803 CADSave up to $7,856 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
$6,803 CAD