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Radiant|Lab Grown|IGI

0.66ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG541284501

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

Certificate IGI LG541284501

Diamond specifications and retailer prices

From £114 GBP
$153 USD
As of November 2, 2026
Save £663 GBP (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £777 GBP at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 0.66ct lab-grown radiant diamond

This 0.66ct lab-grown radiant sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG541284501 or 541284501. Listed at 15 retailers as of November 1, 2026, with prices from £114 to £777, a £663 spread on the same certified stone. Reve Diamonds lists it at £777. 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

0.66
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.8°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG541284501
Dimensions6.13 × 4.29 × 2.92 mm
L/W Ratio1.43
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.13 mm4.29 mm0.66 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG541284501
Side View
Table 63.0%Crown 38.8°Girdle: STK-THKPavilion 34.6°Culet: NoneDepth 68.1%

Caratlytics Score

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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 2
Current: £246 GBP|Low: £110 GBP|High: £668 GBP|Avg: £277 GBP|+4.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 8£114 GBP
Retailer 4£127 GBP
Retailer 12£132 GBP
Retailer 2£141 GBP
Retailer 9£141 GBP
Retailer 1£246 GBP
Retailer 11£258 GBP
Retailer 6£261 GBP
Retailer 3£312 GBP
Retailer 10£454 GBP
Retailer 7£479 GBP
Retailer 5£660 GBP

44 data points across 12 retailers

15 retailers£114 GBP to £777 GBP

A
Cheapest Retailer
-
£114 GBP
$153 USD
A
Retailer 2
-
£127 GBP
$171 USD
View
Final sale: no returns
A
Retailer 3
-
£132 GBP
$177 USD
View
A
Retailer 4
-
£141 GBP
$189 USD
View
Retailer 5
-
£141 GBP
$189 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£246 GBP
View
B+
Retailer 7
-
£258 GBP
$346 USD
View
B+
Retailer 8
-
£261 GBP
$350 USD
View
B+
Retailer 9
-
£286 GBP
HK$3,000 HKD
View
B+
Retailer 10
-
£312 GBP
$419 USD
View
B
Retailer 11
-
£454 GBP
$609 USD
View
B
Retailer 12
-
£479 GBP
$643 USD
View
B
Retailer 13
-
£495 GBP
$664 USD
View
B
Retailer 14
-
£660 GBP
View
Most Expensive
B
Reve Diamonds
6572DDC90 · Nov 1
£777 GBP
$1,043 USD
View
14 more retailers have this diamond
Prices start from £114 GBPSave up to £663 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
£114 GBP