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Round|Lab Grown|GIA

0.30ct G SI2 Round Lab Grown Diamond

EX • G/SI2 • GIA 7398045089

Certificate GIA 7398045089

Diamond specifications and retailer prices

From £177 GBP
₹22,606 INR
As of October 31, 2026
Save £140 GBP (44%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £317 GBP at 77 Diamonds · As of October 31, 2026
View at 77 Diamonds

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 7398045089. Listed at 2 retailers as of October 31, 2026, with prices from £177 to £317, a £140 spread on the same certified stone. 77 Diamonds lists it at £317. 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
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 7398045089
Dimensions4.28 × 4.24 × 2.65 mm
L/W Ratio1.01
Top View
4.28 mm4.24 mm0.30 ctG / SI2
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 7398045089
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.1%

Caratlytics Score

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

Last verified: Oct 31
Current: £317 GBP|Low: £177 GBP|High: £355 GBP|Avg: £325 GBP
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
October 31, 2026
Retailer 2£177 GBP
77 Diamonds£317 GBP
Retailer 4£348 GBP
Retailer 3£355 GBP

5 data points across 4 retailers

2 retailers£177 GBP to £317 GBP

B+
Cheapest Retailer
-
£177 GBP
₹22,606 INR
Most Expensive
B
77 Diamonds
RBPUIFSFKCXPRMR · Oct 31
£317 GBP
View
1 more retailer has this diamond
Prices start from £177 GBPSave up to £140 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
£177 GBP