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Cushion|Natural|GIA

1.51ct H SI1 Cushion Natural Diamond

GD • H/SI1 • GIA 5436497455

Certificate GIA 5436497455

Diamond specifications and retailer prices

From $3,922 SGD
$3,067 USD
As of October 31, 2026
Save $4,613 SGD (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $8,535 SGD at MOH London · As of November 2, 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 5436497455. Listed at 20 retailers as of October 31, 2026, with prices from $3,922 to $8,535, a $4,613 spread on the same certified stone. MOH London lists it at $8,535. 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
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5436497455
Dimensions6.39 × 6.28 × 4.34 mm
L/W Ratio1.02
Top View
6.39 mm6.28 mm1.51 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5436497455
Side View
Table 65.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.1%

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: $8,535 SGD|Low: $3,922 SGD|High: $8,638 SGD|Avg: $5,321 SGD|-0.9%
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 8$3,922 SGD
Retailer 10$4,009 SGD
Retailer 11$4,268 SGD
Retailer 9$4,437 SGD
Retailer 7$4,623 SGD
Retailer 2$4,809 SGD
Retailer 5$5,221 SGD
Retailer 3$5,472 SGD
Retailer 4$5,773 SGD
Retailer 6$6,273 SGD
MOH London$8,535 SGD

34 data points across 11 retailers

20 retailers$3,922 SGD to $8,535 SGD

A
Cheapest Retailer
-
$3,922 SGD
$3,067 USD
A
Retailer 2
-
$4,009 SGD
$3,135 USD
View
B+
Retailer 3
-
$4,104 SGD
$3,209 USD
View
B+
Retailer 4
-
$4,268 SGD
$3,337 USD
View
Final sale: no returns
A
Retailer 5
-
$4,437 SGD
$3,469 USD
View
B+
Retailer 6
-
$4,444 SGD
$3,475 USD
View
B+
Retailer 7
-
$4,574 SGD
$3,577 USD
View
B+
Retailer 8
-
$4,623 SGD
$3,615 USD
View
B+
Retailer 9
-
$4,628 SGD
$3,619 USD
View
B+
Retailer 10
-
$4,809 SGD
£2,961 GBP
View
B+
Retailer 11
-
$4,942 SGD
$3,864 USD
View
B+
Retailer 12
-
$5,221 SGD
£3,214 GBP
View
B+
Retailer 13
-
$5,231 SGD
$4,090 USD
View
B+
Retailer 14
-
$5,231 SGD
$4,090 USD
View
B+
Retailer 15
-
$5,410 SGD
$4,230 USD
View
Retailer 16
-
$5,472 SGD
A$6,583 AUD
View
Price last confirmed 29 days ago
B+
Retailer 17
-
$5,773 SGD
€4,299 EUR
View
Retailer 18
-
$5,777 SGD
$4,517 USD
View
Price last confirmed 10 days ago
B+
Retailer 19
-
$6,273 SGD
ZAR 79,243 ZAR
View
Most Expensive
B
MOH London
595F6FEA4 · Nov 2
$8,535 SGD
£5,255 GBP
View
19 more retailers have this diamond
Prices start from $3,922 SGDSave up to $4,613 SGD

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
$3,922 SGD