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Cushion|Natural|GIA

0.51ct D SI1 Cushion Natural Diamond

GD • D/SI1 • GIA 7511675994

Certificate GIA 7511675994

Diamond specifications and retailer prices

From $614 SGD
As of November 6, 2026
Save $1,264 SGD (67%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,878 SGD at MOH London · As of November 2, 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 D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7511675994. Listed at 14 retailers as of November 2, 2026, with prices from $614 to $1,878, a $1,264 spread on the same certified stone. MOH London lists it at $1,878. 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
D
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7511675994
Dimensions5.73 × 4.07 × 2.93 mm
L/W Ratio1.41
Key to symbols
Crystal, Cloud
Top View
5.73 mm4.07 mm0.51 ctD / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7511675994
Side View
Table 62.0%CrownGirdle: ThickPavilionCulet: NoneDepth 71.9%

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 6
Current: $1,878 SGD|Low: $614 SGD|High: $1,955 SGD|Avg: $1,085 SGD|-3.6%
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
November 6, 2026
Retailer 2$614 SGD
Retailer 5$705 SGD
Retailer 13$870 SGD
Retailer 10$875 SGD
Retailer 9$982 SGD
Retailer 7$991 SGD
Retailer 12$1,019 SGD
Retailer 11$1,051 SGD
Retailer 3$1,164 SGD
Retailer 4$1,170 SGD
Retailer 6$1,189 SGD
Retailer 8$1,255 SGD
MOH London$1,878 SGD

31 data points across 13 retailers

14 retailers$614 SGD to $1,878 SGD

A
Cheapest Retailer
-
$614 SGD
B+
Retailer 2
-
$705 SGD
View
Retailer 3
-
$870 SGD
View
Price last confirmed 11 days ago
Retailer 4
-
$875 SGD
View
Price last confirmed 9 days ago
B
Retailer 5
-
$982 SGD
View
B
Retailer 6
-
$991 SGD
View
B
Retailer 7
-
$1,019 SGD
View
B+
Retailer 8
-
$1,051 SGD
View
B
Retailer 9
-
$1,164 SGD
View
Retailer 10
-
$1,170 SGD
View
Price last confirmed 17 days ago
B
Retailer 11
-
$1,189 SGD
View
B
Retailer 12
-
$1,255 SGD
View
Retailer 13
-
$1,257 SGD
View
Price last confirmed 33 days ago
Most Expensive
B
MOH London
DE2A94A13 · Nov 2
$1,878 SGD
£1,154 GBP
View
13 more retailers have this diamond
Prices start from $614 SGDSave up to $1,264 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
$614 SGD