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Radiant|Lab Grown|IGI

0.66ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG809635473

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

Certificate IGI LG809635473

Diamond specifications and retailer prices

From £135 GBP
$181 USD
As of November 2, 2026
Save £685 GBP (84%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £819 GBP at Michael Trio · As of November 1, 2026
View at Michael Trio

About this 0.66ct lab-grown radiant diamond

This 0.66ct 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 LG809635473 or 809635473. Listed at 19 retailers as of November 1, 2026, with prices from £135 to £819, a £685 spread on the same certified stone. Michael Trio lists it at £819. 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

0.66
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.3°
Pavilion angle33°
OriginLab Grown
Grading LabIGI
CertificateIGI LG809635473
Dimensions6.66 × 4.19 × 2.73 mm
L/W Ratio1.59
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.66 mm4.19 mm0.66 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG809635473
Side View
Table 67.0%Crown 43.3°Girdle: MED-STKPavilion 33°Culet: NoneDepth 65.2%

Caratlytics Score

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A+
Exceptional
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 2
Current: £819 GBP|Low: £135 GBP|High: £830 GBP|Avg: £391 GBP|-1.3%
Michael Trio
Retailer 2
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Retailer 19
November 2, 2026
Retailer 15£135 GBP
Retailer 8£151 GBP
Retailer 6£158 GBP
Retailer 19£168 GBP
Retailer 11£171 GBP
Retailer 18£227 GBP
Retailer 12£278 GBP
Retailer 16£304 GBP
Retailer 17£306 GBP
Retailer 13£323 GBP
Retailer 3£392 GBP
Retailer 14£427 GBP
Retailer 10£480 GBP
Retailer 4£542 GBP
Retailer 5£563 GBP
Retailer 2£569 GBP
Retailer 7£582 GBP
Retailer 9£797 GBP
Michael Trio£819 GBP

17 data points across 19 retailers

19 retailers£135 GBP to £819 GBP

A+
Cheapest Retailer
-
£135 GBP
$181 USD
A
Retailer 2
-
£151 GBP
$203 USD
View
Final sale: no returns
A
Retailer 3
-
£158 GBP
$212 USD
View
A
Retailer 4
-
£168 GBP
$226 USD
View
Retailer 5
-
£171 GBP
$230 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
£227 GBP
$305 USD
View
A
Retailer 7
-
£278 GBP
€355 EUR
View
A
Retailer 8
-
£304 GBP
View
A
Retailer 9
-
£306 GBP
ZAR 6,642 ZAR
View
A
Retailer 10
-
£323 GBP
$433 USD
View
B+
Retailer 11
-
£392 GBP
$526 USD
View
B+
Retailer 12
-
£427 GBP
A$882 AUD
View
B+
Retailer 13
-
£480 GBP
A$990 AUD
View
B+
Retailer 14
-
£542 GBP
$727 USD
View
B+
Retailer 15
-
£563 GBP
$755 USD
View
B
Retailer 16
-
£569 GBP
$764 USD
View
B+
Retailer 17
-
£582 GBP
$782 USD
View
B
Retailer 18
-
£797 GBP
View
Most Expensive
B
Michael Trio
8758496030 · Nov 1
£819 GBP
SGD 1,486 SGD
View
18 more retailers have this diamond
Prices start from £135 GBPSave up to £685 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+
0.66ct Radiant
£135 GBP