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3.08ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG841680464

Shape and cutting style on the report: Round brilliant

Certificate IGI LG841680464

Diamond specifications and retailer prices

From £509 GBP
As of October 30, 2026
Save £1,029 GBP (67%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,537 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 3.08ct lab-grown round diamond

This 3.08ct lab-grown round sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG841680464 or 841680464. Listed at 2 retailers as of October 30, 2026, with prices from £509 to £1,537, a £1,029 spread on the same certified stone. Brilliant Earth lists it at £1,537. 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

3.08
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841680464
Dimensions9.29 × 9.35 × 5.76 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.29 mm9.35 mm3.08 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841680464
Side View
Table 59.0%Crown 35.1°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 61.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £509 GBP|Low: £504 GBP|High: £548 GBP|Avg: £527 GBP|-7.1%
October 30, 2026
Retailer 1£509 GBP

11 data points across 1 retailer

2 retailers£509 GBP to £1,537 GBP

A
Cheapest Retailer
-
£509 GBP
Most Expensive
B
Brilliant Earth
21714775A · Oct 31
£1,537 GBP
$2,060 USD
View
1 more retailer has this diamond
Prices start from £509 GBPSave up to £1,029 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.

A
3.08ct Round
£509 GBP