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Round|Lab Grown|IGI

20.00ct G VS2 Round Lab Grown Diamond

ID • G/VS2 • IGI LG809613809

Shape and cutting style on the report: Round brilliant

Certificate IGI LG809613809

Diamond specifications and retailer prices

From £4,386 GBP
As of November 1, 2026
Save £14,524 GBP (77%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £18,910 GBP at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 20ct lab-grown round diamond

This 20ct 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 LG809613809 or 809613809. Listed at 15 retailers as of October 31, 2026, with prices from £4,386 to £18,910, a £14,524 spread on the same certified stone. Taylor and Hart lists it at £18,910. 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
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG809613809
Dimensions17.45 × 17.31 × 10.65 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.45 mm17.31 mm20.00 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG809613809
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.2%

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 1
Current: £6,821 GBP|Low: £4,384 GBP|High: £18,910 GBP|Avg: £7,073 GBP|-3.3%
Retailer 1
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
Taylor and Hart
November 2, 2026
Retailer 8£4,386 GBP
Retailer 3£4,708 GBP
Retailer 5£4,896 GBP
Retailer 4£5,272 GBP
Retailer 12£5,358 GBP
Retailer 14£5,461 GBP
Retailer 9£5,463 GBP
Retailer 6£5,706 GBP
Retailer 13£6,483 GBP
Retailer 10£6,493 GBP
Retailer 1£6,821 GBP
Retailer 7£8,993 GBP
Retailer 2£15,196 GBP
Retailer 11£16,929 GBP
Taylor and Hart£18,910 GBP

41 data points across 15 retailers

15 retailers£4,386 GBP to £18,910 GBP

A
Cheapest Retailer
-
£4,386 GBP
A
Retailer 2
-
£4,708 GBP
$6,308 USD
View
A
Retailer 3
-
£4,896 GBP
$6,560 USD
View
A
Retailer 4
-
£5,272 GBP
$7,064 USD
View
Final sale: no returns
A
Retailer 5
-
£5,358 GBP
$7,179 USD
View
A
Retailer 6
-
£5,461 GBP
$7,317 USD
View
A
Retailer 7
-
£5,463 GBP
$7,320 USD
View
Retailer 8
-
£5,706 GBP
$7,646 USD
View
Price last confirmed 20 days ago
A
Retailer 9
-
£6,483 GBP
$8,686 USD
View
A
Retailer 10
-
£6,493 GBP
$8,700 USD
View
A
Retailer 11
-
£6,821 GBP
View
B
Retailer 12
-
£8,993 GBP
$12,050 USD
View
B
Retailer 13
-
£15,196 GBP
$20,361 USD
View
B
Retailer 14
-
£16,929 GBP
$22,683 USD
View
Most Expensive
B
Taylor and Hart
LVI9QR2 · Oct 31
£18,910 GBP
$25,338 USD
View
14 more retailers have this diamond
Prices start from £4,386 GBPSave up to £14,524 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
20.00ct Round
£4,386 GBP