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Cushion|Natural|GIA

1.51ct E SI1 Cushion Natural Diamond

GD • E/SI1 • GIA 6551449414

Certificate GIA 6551449414

Diamond specifications and retailer prices

From $3,791 SGD
As of November 7, 2026
Save $4,590 SGD (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $8,381 SGD at MOH London · As of November 7, 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 E colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6551449414. Listed at 17 retailers as of November 7, 2026, with prices from $3,791 to $8,381, a $4,590 spread on the same certified stone. MOH London lists it at $8,381. 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
E
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 6551449414
Dimensions6.21 × 6.16 × 4.37 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Needle
Top View
6.21 mm6.16 mm1.51 ctE / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6551449414
Side View
Table 62.0%CrownGirdle: VTK-ETKPavilionCulet: NoneDepth 70.9%

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: Nov 7
Current: $8,381 SGD|Low: $3,791 SGD|High: $8,809 SGD|Avg: $5,283 SGD|-4.9%
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
November 7, 2026
Retailer 11$3,791 SGD
Retailer 6$4,001 SGD
Retailer 3$4,298 SGD
Retailer 5$4,433 SGD
Retailer 16$4,486 SGD
Retailer 10$4,627 SGD
Retailer 14$4,719 SGD
Retailer 8$4,807 SGD
Retailer 12$5,038 SGD
Retailer 15$5,102 SGD
Retailer 2$5,312 SGD
Retailer 4$5,351 SGD
Retailer 7$5,665 SGD
Retailer 9$6,036 SGD
Retailer 17$6,149 SGD
Retailer 13$6,385 SGD
MOH London$8,381 SGD

18 data points across 17 retailers

17 retailers$3,791 SGD to $8,381 SGD

A
Cheapest Retailer
-
$3,791 SGD
A
Retailer 2
-
$4,001 SGD
View
Final sale: no returns
A
Retailer 3
-
$4,298 SGD
View
A
Retailer 4
-
$4,433 SGD
View
A
Retailer 5
-
$4,486 SGD
View
B+
Retailer 6
-
$4,627 SGD
View
A
Retailer 7
-
$4,719 SGD
View
A
Retailer 8
-
$4,807 SGD
View
A
Retailer 9
-
$5,038 SGD
View
A
Retailer 10
-
$5,102 SGD
View
A
Retailer 11
-
$5,312 SGD
View
A
Retailer 12
-
$5,351 SGD
View
A
Retailer 13
-
$5,665 SGD
View
Retailer 14
-
$5,760 SGD
View
Price last confirmed 34 days ago
A
Retailer 15
-
$6,149 SGD
View
B+
Retailer 16
-
$6,385 SGD
View
Most Expensive
B+
MOH London
D9EF38E03 · Nov 7
$8,381 SGD
£5,149 GBP
View
16 more retailers have this diamond
Prices start from $3,791 SGDSave up to $4,590 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
$3,791 SGD