CaratHunter
Plans
Cushion|Natural|GIA

0.51ct E SI1 Cushion Natural Diamond

VG • E/SI1 • GIA 1555383416

Certificate GIA 1555383416

Diamond specifications and retailer prices

From $574 SGD
As of November 6, 2026
Save $944 SGD (62%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $1,519 SGD at MOH London · As of November 4, 2026
View at MOH London

About this 0.51ct natural cushion diamond

This 0.51ct natural cushion sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1555383416. Listed at 17 retailers as of November 4, 2026, with prices from $574 to $1,519, a $944 spread on the same certified stone. MOH London lists it at $1,519. 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

0.51
Carat
E
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1555383416
Dimensions5.31 × 4.24 × 2.92 mm
L/W Ratio1.25
Girdle conditionFaceted
Top View
5.31 mm4.24 mm0.51 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1555383416
Side View
Table 69.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.8%

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 6
Current: $1,519 SGD|Low: $607 SGD|High: $1,561 SGD|Avg: $895 SGD|-2.7%
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 6, 2026
Retailer 3$607 SGD
Retailer 4$687 SGD
Retailer 6$700 SGD
Retailer 2$710 SGD
Retailer 5$804 SGD
Retailer 7$816 SGD
Retailer 11$824 SGD
Retailer 12$916 SGD
Retailer 9$977 SGD
Retailer 10$1,003 SGD
Retailer 8$1,020 SGD
MOH London$1,519 SGD

27 data points across 12 retailers

17 retailers$574 SGD to $1,519 SGD

A
Cheapest Retailer
-
$574 SGD
A
Retailer 2
-
$607 SGD
View
Final sale: no returns
A
Retailer 3
-
$687 SGD
View
A
Retailer 4
-
$700 SGD
View
A
Retailer 5
-
$710 SGD
View
B+
Retailer 6
-
$723 SGD
View
B+
Retailer 7
-
$804 SGD
View
B+
Retailer 8
-
$816 SGD
View
Retailer 9
-
$824 SGD
View
Price last confirmed 7 days ago
B+
Retailer 10
-
$916 SGD
View
B+
Retailer 11
-
$951 SGD
View
B
Retailer 12
-
$971 SGD
View
B+
Retailer 13
-
$977 SGD
View
B
Retailer 14
-
$1,003 SGD
View
Retailer 15
-
$1,003 SGD
View
Price last confirmed 34 days ago
B+
Retailer 16
-
$1,020 SGD
View
Most Expensive
B
MOH London
99DB9A894 · Nov 4
$1,519 SGD
£933 GBP
View
16 more retailers have this diamond
Prices start from $574 SGDSave up to $944 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
0.51ct Cushion
$574 SGD