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0.51ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • GIA 6562584155

Certificate GIA 6562584155

Diamond specifications and retailer prices

From £1,102 GBP
$1,477 USD
As of November 1, 2026
Save £1,459 GBP (57%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £2,561 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 0.51ct lab-grown round diamond

This 0.51ct lab-grown round sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6562584155. Listed at 2 retailers as of November 1, 2026, with prices from £1,102 to £2,561, a £1,459 spread on the same certified stone. MOH London lists it at £2,561. 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

0.51
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 6562584155
Dimensions5.18 × 5.14 × 3.16 mm
L/W Ratio1.01
Top View
5.18 mm5.14 mm0.51 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6562584155
Side View
Table 58.0%CrownGirdlePavilionCuletDepth 61.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 1
Current: £2,561 GBP|Low: £1,102 GBP|High: £2,575 GBP|Avg: £1,689 GBP|-0.6%
MOH London
Retailer 2
November 1, 2026
Retailer 2£1,102 GBP
MOH London£2,561 GBP

3 data points across 2 retailers

2 retailers£1,102 GBP to £2,561 GBP

B
Cheapest Retailer
-
£1,102 GBP
$1,477 USD
Most Expensive
B
MOH London
6562584155 · Nov 1
£2,561 GBP
View
1 more retailer has this diamond
Prices start from £1,102 GBPSave up to £1,459 GBP

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 Round
£1,102 GBP