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Round|Lab Grown|IGI

20.01ct G VS2 Round Lab Grown Diamond

VG • G/VS2 • IGI LG817651466

Shape and cutting style on the report: Round brilliant

Certificate IGI LG817651466

Diamond specifications and retailer prices

From £4,180 GBP
$5,601 USD
As of November 1, 2026
Save £12,932 GBP (76%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £17,112 GBP at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 20.01ct lab-grown round diamond

This 20.01ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG817651466 or 817651466. Listed at 15 retailers as of October 31, 2026, with prices from £4,180 to £17,112, a £12,932 spread on the same certified stone. Taylor and Hart lists it at £17,112. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

20.01
Carat
G
Colour
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817651466
Dimensions17.86 × 17.75 × 10.14 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.86 mm17.75 mm20.01 ctG / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817651466
Side View
Table 63.0%Crown 32.6°Girdle: MED-THKPavilion 40°Culet: NoneDepth 56.9%

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: £6,200 GBP|Low: £3,915 GBP|High: £17,834 GBP|Avg: £7,569 GBP|-1.3%
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£3,915 GBP
Retailer 11£4,180 GBP
Retailer 14£4,381 GBP
Retailer 5£4,682 GBP
Retailer 6£4,850 GBP
Retailer 10£4,850 GBP
Retailer 7£4,851 GBP
Retailer 13£4,904 GBP
Retailer 12£5,757 GBP
Retailer 9£5,972 GBP
Retailer 1£6,200 GBP
Retailer 2£7,488 GBP
Retailer 3£13,489 GBP
Retailer 4£16,758 GBP
Taylor and Hart£17,112 GBP

41 data points across 15 retailers

15 retailers£4,180 GBP to £17,112 GBP

Retailer 1
-
£3,915 GBP
Price last confirmed 16 days ago
A
Retailer 2
-
£4,180 GBP
$5,601 USD
View
A
Retailer 3
-
£4,381 GBP
$5,870 USD
View
A
Retailer 4
-
£4,682 GBP
$6,273 USD
View
Final sale: no returns
Retailer 5
-
£4,850 GBP
$6,498 USD
View
Price last confirmed 20 days ago
A
Retailer 6
-
£4,850 GBP
$6,498 USD
View
A
Retailer 7
-
£4,851 GBP
$6,500 USD
View
A
Retailer 8
-
£4,904 GBP
$6,571 USD
View
A
Retailer 9
-
£5,757 GBP
$7,714 USD
View
A
Retailer 10
-
£5,972 GBP
$8,002 USD
View
A
Retailer 11
-
£6,200 GBP
View
B+
Retailer 12
-
£7,488 GBP
$10,033 USD
View
B
Retailer 13
-
£13,489 GBP
$18,073 USD
View
B
Retailer 14
-
£16,758 GBP
$22,454 USD
View
Most Expensive
B
Taylor and Hart
G9G54HO · Oct 31
£17,112 GBP
$22,928 USD
View
14 more retailers have this diamond
Prices start from £4,180 GBPSave up to £12,932 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
20.01ct Round
£4,180 GBP