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Cushion|Natural|GIA

0.61ct H SI1 Cushion Natural Diamond

ID • H/SI1 • GIA 6541351724

Certificate GIA 6541351724

Diamond specifications and retailer prices

From £328 GBP
$440 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: £328 GBP at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 0.61ct natural cushion diamond

This 0.61ct natural cushion sits in the half to three-quarter carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6541351724. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.61
Carat
H
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle32.7°
Pavilion angle38°
OriginNatural
Grading LabGIA
CertificateGIA 6541351724
Dimensions4.95 × 4.88 × 3.28 mm
L/W Ratio1.01
Top View
4.95 mm4.88 mm0.61 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6541351724
Side View
Table 62.0%Crown 32.7°Girdle: THN-THKPavilion 38°Culet: NoneDepth 67.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: £328 GBP|Low: £313 GBP|High: £520 GBP|Avg: £432 GBP|-2.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
July 7, 2026
Retailer 7£315 GBP
Retailer 4£319 GBP
Brilliant Earth£328 GBP
Retailer 2£402 GBP
Retailer 8£425 GBP
Retailer 10£425 GBP
Retailer 6£427 GBP
Retailer 9£440 GBP
Retailer 5£446 GBP
Retailer 11£455 GBP
Retailer 3£520 GBP

55 data points across 11 retailers

1 retailer

B+
Brilliant Earth
17663130Y · Nov 2
£328 GBP
$440 USD
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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+
0.61ct Cushion
£328 GBP