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Radiant|Lab Grown|IGI

0.71ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG811649368

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

Certificate IGI LG811649368

Diamond specifications and retailer prices

From £151 GBP
As of November 4, 2026
Save £667 GBP (82%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £818 GBP at Michael Trio · As of November 4, 2026
View at Michael Trio

About this 0.71ct lab-grown radiant diamond

This 0.71ct lab-grown radiant sits in the half to three-quarter carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG811649368 or 811649368. Listed at 14 retailers as of November 4, 2026, with prices from £151 to £818, a £667 spread on the same certified stone. Michael Trio lists it at £818. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.71
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.9°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811649368
Dimensions6.59 × 4.22 × 2.86 mm
L/W Ratio1.56
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.59 mm4.22 mm0.71 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811649368
Side View
Table 69.0%Crown 41.9°Girdle: STK-THKPavilion 35.1°Culet: NoneDepth 67.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £818 GBP|Low: £151 GBP|High: £833 GBP|Avg: £448 GBP|-1.7%
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 5, 2026
Retailer 10£151 GBP
Retailer 12£228 GBP
Retailer 13£279 GBP
Retailer 2£301 GBP
Retailer 3£307 GBP
Retailer 6£342 GBP
Retailer 4£393 GBP
Retailer 14£430 GBP
Retailer 5£508 GBP
Retailer 8£563 GBP
Retailer 11£572 GBP
Retailer 9£581 GBP
Retailer 7£785 GBP
Michael Trio£818 GBP

24 data points across 14 retailers

14 retailers£151 GBP to £818 GBP

A
Cheapest Retailer
-
£151 GBP
Final sale: no returns
A
Retailer 2
-
£228 GBP
View
A
Retailer 3
-
£279 GBP
View
A
Retailer 4
-
£301 GBP
View
A
Retailer 5
-
£307 GBP
View
A
Retailer 6
-
£342 GBP
View
B+
Retailer 7
-
£393 GBP
View
B+
Retailer 8
-
£430 GBP
View
Retailer 9
-
£508 GBP
View
Price last confirmed 11 days ago
B+
Retailer 10
-
£563 GBP
View
B
Retailer 11
-
£572 GBP
View
B+
Retailer 12
-
£581 GBP
View
B
Retailer 13
-
£785 GBP
View
Most Expensive
B
Michael Trio
1207847778 · Nov 4
£818 GBP
SGD 1,493 SGD
View
13 more retailers have this diamond
Prices start from £151 GBPSave up to £667 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
0.71ct Radiant
£151 GBP