Cushion|Natural|IGI

0.51ct H IF Cushion Natural Diamond

H/IF • IGI 800659081

Certificate IGI 800659081

Diamond specifications and retailer prices

From €453 EUR
$506 USD
As of October 29, 2026
Save €188 EUR (29%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: €641 EUR at B2C Jewels · As of October 31, 2026
View at B2C Jewels

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 IF clarity (flawless or internally-flawless) and certified by IGI 800659081. Listed at 2 retailers as of October 29, 2026, with prices from €453 to €641, a €188 spread on the same certified stone. B2C Jewels lists it at €641. 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
Color
IF
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabIGI
CertificateIGI 800659081
Dimensions4.70 × 4.67 × 3.08 mm
L/W Ratio1.01
Top View
4.70 mm4.67 mm0.51 ctH / IF
OriginNatural
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 800659081
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCuletDepth 66.0%

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: Oct 29
Current: €641 EUR|Low: €341 EUR|High: €675 EUR|Avg: €473 EUR|+6.1%
B2C Jewels
Retailer 2
September 23, 2026
Retailer 2€358 EUR
B2C Jewels€641 EUR

33 data points across 2 retailers

2 retailers€453 EUR to €641 EUR

B+
Cheapest Retailer
-
€453 EUR
$506 USD
Most Expensive
B
B2C Jewels
35180532 · Oct 31
€641 EUR
$716 USD
View
1 more retailer has this diamond
Prices start from €453 EURSave up to €188 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
€453 EUR