Cushion|Natural|GIA

0.51ct D SI1 Cushion Natural Diamond

GD • D/SI1 • GIA 1365547531

Certificate GIA 1365547531

Diamond specifications and retailer prices

From $951 USD
As of November 4, 2026
Save $419 USD (31%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,370 USD at GemTrove · As of November 6, 2026
View at GemTrove

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 1365547531. Listed at 8 retailers as of November 4, 2026, with prices from $951 to $1,370, a $419 spread on the same certified stone. GemTrove lists it at $1,370. 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
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1365547531
Dimensions4.58 × 4.51 × 3.13 mm
L/W Ratio1.02
Culet sizeNone
Top View
4.58 mm4.51 mm0.51 ctD / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1365547531
Side View
Table 61.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 69.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $1,370 USD|Low: $867 USD|High: $1,556 USD|Avg: $1,152 USD
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 14, 2026
Retailer 2$945 USD
Retailer 5$951 USD
Retailer 4$975 USD
Retailer 3$1,007 USD
Retailer 6$1,072 USD
Retailer 8$1,210 USD
Retailer 9$1,210 USD
Retailer 7$1,250 USD
GemTrove$1,370 USD
Retailer 10$1,556 USD

3 data points across 10 retailers

8 retailers$951 USD to $1,370 USD

B
Cheapest Retailer
-
$951 USD
B
Retailer 2
-
$975 USD
View
B
Retailer 3
-
$1,007 USD
View
B
Retailer 4
-
$1,072 USD
View
B
Retailer 5
-
$1,210 USD
View
B
Retailer 6
-
$1,210 USD
View
B
Retailer 7
-
$1,250 USD
View
Most Expensive
C
GemTrove
GT-N-00945208-98 · Nov 6
$1,370 USD
A$2,108 AUD
View
7 more retailers have this diamond
Prices start from $951 USDSave up to $419 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
$951 USD