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Round|Lab Grown|GIA

0.30ct G SI2 Round Lab Grown Diamond

EX • G/SI2 • GIA 6531176791

Certificate GIA 6531176791

Diamond specifications and retailer prices

From £435 GBP
As of October 30, 2026
Save £661 GBP (60%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £1,096 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.3ct lab-grown round diamond

This 0.3ct lab-grown round sits in the sub-half-carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6531176791. Listed at 5 retailers as of October 29, 2026, with prices from £435 to £1,096, a £661 spread on the same certified stone. MOH London lists it at £1,096. 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

0.30
Carat
G
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginLab Grown
Grading LabGIA
CertificateGIA 6531176791
Dimensions4.29 × 4.32 × 2.67 mm
L/W Ratio1.01
Culet sizeNone
Top View
4.29 mm4.32 mm0.30 ctG / SI2
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6531176791
Side View
Table 60.0%CrownGirdlePavilionCulet: NoneDepth 62.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,096 GBP|Low: £242 GBP|High: £1,139 GBP|Avg: £526 GBP|-2.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 6£242 GBP
Retailer 2£435 GBP
Retailer 5£447 GBP
Retailer 4£487 GBP
Retailer 3£504 GBP
MOH London£1,096 GBP

35 data points across 6 retailers

5 retailers£435 GBP to £1,096 GBP

B
Cheapest Retailer
-
£435 GBP
B
Retailer 2
-
£447 GBP
$595 USD
View
B
Retailer 3
-
£487 GBP
$649 USD
View
B
Retailer 4
-
£504 GBP
€639 EUR
View
Most Expensive
B
MOH London
6531176791 · Oct 29
£1,096 GBP
View
4 more retailers have this diamond
Prices start from £435 GBPSave up to £661 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
0.30ct Round
£435 GBP