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Round|Lab Grown|IGI

20.09ct G VS2 Round Lab Grown Diamond

EX • G/VS2 • IGI LG795623742

Shape and cutting style on the report: Round brilliant

Certificate IGI LG795623742

Diamond specifications and retailer prices

From £6,160 GBP
As of November 2, 2026
Save £19,245 GBP (76%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £25,405 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 20.09ct lab-grown round diamond

This 20.09ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG795623742 or 795623742. Listed at 15 retailers as of October 31, 2026, with prices from £6,160 to £25,405, a £19,245 spread on the same certified stone. Brilliant Earth lists it at £25,405. 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

20.09
Carat
G
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle41.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG795623742
Dimensions17.50 × 17.44 × 10.77 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.50 mm17.44 mm20.09 ctG / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG795623742
Side View
Table 58.0%Crown 33.1°Girdle: MED-STKPavilion 41.7°Culet: NoneDepth 61.7%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: £25,405 GBP|Low: £6,158 GBP|High: £25,405 GBP|Avg: £9,309 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 6£6,160 GBP
Retailer 11£6,612 GBP
Retailer 3£6,877 GBP
Retailer 13£7,172 GBP
Retailer 5£7,671 GBP
Retailer 12£7,671 GBP
Retailer 9£7,672 GBP
Retailer 10£8,397 GBP
Retailer 4£8,627 GBP
Retailer 2£8,872 GBP
Retailer 7£9,220 GBP
Retailer 8£14,638 GBP
Brilliant Earth£25,405 GBP

41 data points across 13 retailers

15 retailers£6,160 GBP to £25,405 GBP

A
Cheapest Retailer
-
£6,160 GBP
A
Retailer 2
-
£6,612 GBP
$8,860 USD
View
B+
Retailer 3
-
£6,877 GBP
$9,214 USD
View
B+
Retailer 4
-
£7,172 GBP
$9,610 USD
View
B+
Retailer 5
-
£7,671 GBP
$10,278 USD
View
Retailer 6
-
£7,671 GBP
$10,278 USD
View
Price last confirmed 20 days ago
B+
Retailer 7
-
£7,672 GBP
$10,280 USD
View
B+
Retailer 8
-
£8,397 GBP
$11,251 USD
View
B+
Retailer 9
-
£8,627 GBP
$11,559 USD
View
B+
Retailer 10
-
£8,872 GBP
$11,888 USD
View
B+
Retailer 11
-
£9,220 GBP
View
B
Retailer 12
-
£14,638 GBP
€18,679 EUR
View
B
Retailer 13
-
£17,734 GBP
$23,761 USD
View
B
Retailer 14
-
£24,234 GBP
$32,471 USD
View
Most Expensive
B
Brilliant Earth
19979857A · Oct 31
£25,405 GBP
$34,040 USD
View
14 more retailers have this diamond
Prices start from £6,160 GBPSave up to £19,245 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
20.09ct Round
£6,160 GBP