Cushion|Natural|GIA

0.51ct D SI1 Cushion Natural Diamond

GD • D/SI1 • GIA 7511675994

Certificate GIA 7511675994

Diamond specifications and retailer prices

From $479 USD
As of November 6, 2026
Save $987 USD (67%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,466 USD 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 $479 to $1,466, a $987 spread on the same certified stone. MOH London lists it at $1,466. 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
Color
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: $1,466 USD|Low: $479 USD|High: $1,525 USD|Avg: $846 USD|-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$479 USD
Retailer 5$550 USD
Retailer 13$679 USD
Retailer 10$683 USD
Retailer 9$766 USD
Retailer 7$773 USD
Retailer 12$795 USD
Retailer 11$820 USD
Retailer 3$908 USD
Retailer 4$913 USD
Retailer 6$928 USD
Retailer 8$979 USD
MOH London$1,466 USD

31 data points across 13 retailers

14 retailers$479 USD to $1,466 USD

A
Cheapest Retailer
-
$479 USD
B+
Retailer 2
-
$550 USD
View
Retailer 3
-
$679 USD
View
Price last confirmed 10 days ago
Retailer 4
-
$683 USD
View
Price last confirmed 8 days ago
B
Retailer 5
-
$766 USD
View
B
Retailer 6
-
$773 USD
View
B
Retailer 7
-
$795 USD
View
B+
Retailer 8
-
$820 USD
View
B
Retailer 9
-
$908 USD
View
Retailer 10
-
$913 USD
View
Price last confirmed 16 days ago
B
Retailer 11
-
$928 USD
View
B
Retailer 12
-
$979 USD
View
Retailer 13
-
$981 USD
View
Price last confirmed 32 days ago
Most Expensive
B
MOH London
DE2A94A13 · Nov 2
$1,466 USD
£1,154 GBP
View
13 more retailers have this diamond
Prices start from $479 USDSave up to $987 USD

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
$479 USD