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Cushion|Natural|IGI

0.51ct H IF Cushion Natural Diamond

H/IF • IGI 800659081

Certificate IGI 800659081

Diamond specifications and retailer prices

From $1,023 AUD
$716 USD
As of November 4, 2026
2 retailers carry this diamond
Most expensive: $1,023 AUD at B2C Jewels
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 November 4, 2026. 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
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

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 4
Current: $1,023 AUD|Low: $544 AUD|High: $1,077 AUD|Avg: $755 AUD|+6.1%
B2C Jewels
Retailer 2
September 23, 2026
Retailer 2$570 AUD
B2C Jewels$1,023 AUD

33 data points across 2 retailers

2 retailers

Retailer 1
-
$723 AUD
Price last confirmed 7 days ago
Most Expensive
B
B2C Jewels
35180532 · Nov 4
$1,023 AUD
$716 USD
View
1 more retailer has this diamond

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
$1,023 AUD