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Radiant|Lab Grown|IGI

20.00ct G VS1 Radiant Lab Grown Diamond

ID • G/VS1 • IGI LG772695237

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

Certificate IGI LG772695237

Diamond specifications and retailer prices

From £6,136 GBP
$8,222 USD
As of November 1, 2026
Save £15,132 GBP (71%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £21,268 GBP at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 20ct lab-grown radiant diamond

This 20ct lab-grown radiant sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG772695237 or 772695237. Listed at 5 retailers as of October 31, 2026, with prices from £6,136 to £21,268, a £15,132 spread on the same certified stone. Taylor and Hart lists it at £21,268. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

20.00
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.6°
Pavilion angle29.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG772695237
Dimensions20.34 × 13.16 × 8.28 mm
L/W Ratio1.55
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
20.34 mm13.16 mm20.00 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG772695237
Side View
Table 61.0%Crown 43.6°Girdle: MED-STKPavilion 29.2°Culet: NoneDepth 62.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £7,716 GBP|Low: £5,650 GBP|High: £21,268 GBP|Avg: £12,299 GBP|-2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Taylor and Hart
November 2, 2026
Retailer 3£6,136 GBP
Retailer 1£7,716 GBP
Retailer 2£8,620 GBP
Retailer 4£17,837 GBP
Taylor and Hart£21,268 GBP

33 data points across 5 retailers

5 retailers£6,136 GBP to £21,268 GBP

B+
Cheapest Retailer
-
£6,136 GBP
$8,222 USD
B+
Retailer 2
-
£7,716 GBP
View
B
Retailer 3
-
£8,620 GBP
$11,550 USD
View
B
Retailer 4
-
£17,837 GBP
$23,899 USD
View
Most Expensive
B
Taylor and Hart
DCYD0GF · Oct 31
£21,268 GBP
$28,497 USD
View
4 more retailers have this diamond
Prices start from £6,136 GBPSave up to £15,132 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.

B+
20.00ct Radiant
£6,136 GBP