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Round|Lab Grown|IGI

20.03ct G VS2 Round Lab Grown Diamond

ID • G/VS2 • IGI LG805634414

Shape and cutting style on the report: Round brilliant

Certificate IGI LG805634414

Diamond specifications and retailer prices

From £5,668 GBP
As of November 1, 2026
Save £19,670 GBP (78%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £25,338 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 20.03ct lab-grown round diamond

This 20.03ct 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 LG805634414 or 805634414. Listed at 15 retailers as of October 31, 2026, with prices from £5,668 to £25,338, a £19,670 spread on the same certified stone. Brilliant Earth lists it at £25,338. 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

20.03
Carat
G
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG805634414
Dimensions17.45 × 17.37 × 10.58 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
17.45 mm17.37 mm20.03 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG805634414
Side View
Table 60.0%Crown 36°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 60.7%

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 1
Current: £25,338 GBP|Low: £5,666 GBP|High: £25,338 GBP|Avg: £10,529 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
Retailer 14
Retailer 15
November 2, 2026
Retailer 8£5,668 GBP
Retailer 13£6,083 GBP
Retailer 5£6,327 GBP
Retailer 4£6,701 GBP
Retailer 14£7,057 GBP
Retailer 15£7,057 GBP
Retailer 10£7,060 GBP
Retailer 11£7,850 GBP
Retailer 12£7,874 GBP
Retailer 3£7,936 GBP
Retailer 2£8,670 GBP
Retailer 9£14,638 GBP
Retailer 6£17,454 GBP
Retailer 7£22,785 GBP
Brilliant Earth£25,338 GBP

43 data points across 15 retailers

15 retailers£5,668 GBP to £25,338 GBP

A
Cheapest Retailer
-
£5,668 GBP
A
Retailer 2
-
£6,083 GBP
$8,151 USD
View
A
Retailer 3
-
£6,327 GBP
$8,477 USD
View
A
Retailer 4
-
£6,701 GBP
$8,979 USD
View
B+
Retailer 5
-
£7,057 GBP
$9,455 USD
View
Retailer 6
-
£7,057 GBP
$9,455 USD
View
Price last confirmed 20 days ago
B+
Retailer 7
-
£7,060 GBP
$9,460 USD
View
B+
Retailer 8
-
£7,850 GBP
$10,518 USD
View
B+
Retailer 9
-
£7,874 GBP
$10,550 USD
View
B+
Retailer 10
-
£7,936 GBP
$10,634 USD
View
B+
Retailer 11
-
£8,670 GBP
View
B
Retailer 12
-
£14,638 GBP
€18,679 EUR
View
B
Retailer 13
-
£17,454 GBP
$23,387 USD
View
B
Retailer 14
-
£22,785 GBP
$30,530 USD
View
Most Expensive
B
Brilliant Earth
20208502A · Oct 31
£25,338 GBP
$33,950 USD
View
14 more retailers have this diamond
Prices start from £5,668 GBPSave up to £19,670 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
20.03ct Round
£5,668 GBP