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Radiant|Lab Grown|IGI

0.85ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG457046839

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG457046839

Diamond specifications and retailer prices

From £338 GBP
As of October 29, 2026
1 retailer carries this diamond
Only listing: £338 GBP at MD Diamonds and Jewellers
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 MD Diamonds and Jewellers

About this 0.85ct lab-grown radiant diamond

This 0.85ct lab-grown radiant sits in the just-under-one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG457046839 or 457046839. Listed at a single retailer as of October 29, 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

0.85
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle43.4°
Pavilion angle33.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG457046839
Dimensions6.14 × 4.87 × 3.21 mm
L/W Ratio1.26
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.14 mm4.87 mm0.85 ctG / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG457046839
Side View
Table 68.5%Crown 43.4°Girdle: Very ThickPavilion 33.8°Culet: NoneDepth 65.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: £232 GBP|Low: £135 GBP|High: £463 GBP|Avg: £263 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
September 20, 2026
Retailer 3£135 GBP
Retailer 2£208 GBP
Retailer 1£232 GBP
Retailer 4£275 GBP
Retailer 5£463 GBP

4 data points across 5 retailers

1 retailer

B
MD Diamonds and Jewellers
LG457046839 · Oct 29
£338 GBP
View

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
0.85ct Radiant
£338 GBP