Cushion · Old Mine|Natural|GIA

0.51ct K VS1 Cushion Natural Diamond

GD • K/VS1 • GIA 6552957404

Certificate GIA 6552957404

Diamond specifications and retailer prices

From $490 USD
As of November 6, 2026
Save $1,132 USD (70%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,925 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 K colour (faint-tinted) and VS1 clarity (very-slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6552957404. Listed at 10 retailers as of November 5, 2026, with a 231% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
K
Color
VS1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552957404
Dimensions5.80 × 4.25 × 2.68 mm
L/W Ratio1.36
Culet sizeVery Large
Top View
5.80 mm4.25 mm0.51 ctK / VS1
OriginNatural
CutGood
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 6552957404
Side View
Table 58.0%CrownGirdle: MED-VTKPavilionCulet: Very LargeDepth 62.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,925 USD|Low: $490 USD|High: $1,925 USD|Avg: $1,111 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 10$490 USD
Retailer 6$1,051 USD
Retailer 7$1,152 USD
Retailer 5$1,190 USD
Retailer 8$1,213 USD
Retailer 9$1,213 USD
Retailer 4$1,239 USD
Retailer 3$1,474 USD
Retailer 2$1,622 USD
MOH London$1,925 USD

6 data points across 10 retailers

10 retailers$490 USD to $1,622 USD

B+
Cheapest Retailer
-
$490 USD
C
Retailer 2
-
$1,051 USD
View
C
Retailer 3
-
$1,152 USD
View
C
Retailer 4
-
$1,190 USD
View
C
Retailer 5
-
$1,213 USD
View
C
Retailer 6
-
$1,213 USD
View
C
Retailer 7
-
$1,239 USD
View
C
Retailer 8
-
$1,474 USD
View
C
Retailer 9
-
$1,622 USD
View
Most Expensive
MOH London
0AADB3838 · Nov 2
$1,925 USD
£1,516 GBP
View
Price under review
9 more retailers have this diamond
Prices start from $490 USDSave up to $1,132 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.

B+
0.51ct Cushion
$490 USD