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Cushion|Natural|GIA

0.51ct D SI1 Cushion Natural Diamond

GD • D/SI1 • GIA 1365547531

Certificate GIA 1365547531

Diamond specifications and retailer prices

From €852 EUR
As of November 4, 2026
Save €375 EUR (31%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €1,227 EUR 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 €852 to €1,227, a €375 spread on the same certified stone. GemTrove lists it at €1,227. 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
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

How it works →
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: €1,227 EUR|Low: €777 EUR|High: €1,394 EUR|Avg: €1,032 EUR
GemTrove
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 14, 2026
Retailer 2€846 EUR
Retailer 5€852 EUR
Retailer 4€873 EUR
Retailer 3€902 EUR
Retailer 6€960 EUR
Retailer 8€1,084 EUR
Retailer 9€1,084 EUR
Retailer 7€1,120 EUR
GemTrove€1,227 EUR
Retailer 10€1,394 EUR

3 data points across 10 retailers

8 retailers€852 EUR to €1,227 EUR

B
Cheapest Retailer
-
€852 EUR
B
Retailer 2
-
€873 EUR
View
B
Retailer 3
-
€902 EUR
View
B
Retailer 4
-
€960 EUR
View
B
Retailer 5
-
€1,084 EUR
View
B
Retailer 6
-
€1,084 EUR
View
B
Retailer 7
-
€1,120 EUR
View
Most Expensive
C
GemTrove
GT-N-00945208-98 · Nov 6
€1,227 EUR
A$2,108 AUD
View
7 more retailers have this diamond
Prices start from €852 EURSave up to €375 EUR

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
€852 EUR