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Cushion|Natural|GIA

0.51ct H SI1 Cushion Natural Diamond

GD • H/SI1 • GIA 2537508439

Certificate GIA 2537508439

Diamond specifications and retailer prices

From €320 EUR
As of November 6, 2026
Save €91 EUR (22%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: €411 EUR at 77 Diamonds · As of November 7, 2026
View at 77 Diamonds

About this 0.51ct natural cushion diamond

This 0.51ct natural cushion sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2537508439. Listed at 4 retailers as of November 6, 2026, with prices from €320 to €411, a €91 spread on the same certified stone. 77 Diamonds lists it at €411. 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
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2537508439
Dimensions4.63 × 4.42 × 2.95 mm
L/W Ratio1.05
Top View
4.63 mm4.42 mm0.51 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2537508439
Side View
Table 64.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €411 EUR|Low: €265 EUR|High: €438 EUR|Avg: €358 EUR|-4.4%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 7, 2026
Retailer 2€303 EUR
Retailer 5€320 EUR
Retailer 3€359 EUR
Retailer 4€391 EUR
77 Diamonds€411 EUR

41 data points across 5 retailers

4 retailers€320 EUR to €411 EUR

A
Cheapest Retailer
-
€320 EUR
Retailer 2
-
€359 EUR
View
Price last confirmed 11 days ago
Retailer 3
-
€391 EUR
View
Price last confirmed 10 days ago
Most Expensive
B+
77 Diamonds
CUSCPFY7KRDR3 · Nov 7
€411 EUR
£362 GBP
View
3 more retailers have this diamond
Prices start from €320 EURSave up to €91 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.

A
0.51ct Cushion
€320 EUR