CaratHunter
Plans
Round|Lab Grown|IGI

20.05ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG791632168

Shape and cutting style on the report: Round brilliant

Certificate IGI LG791632168

Diamond specifications and retailer prices

From £6,052 GBP
$8,109 USD
As of October 29, 2026
Save £18,393 GBP (75%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £45,250 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 20.05ct lab-grown round diamond

This 20.05ct lab-grown round 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 LG791632168 or 791632168. Listed at 16 retailers as of October 29, 2026, with a 304% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

20.05
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG791632168
Dimensions17.74 × 17.67 × 10.41 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
17.74 mm17.67 mm20.05 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG791632168
Side View
Table 60.0%Crown 33.2°Girdle: MediumPavilion 40.3°Culet: NoneDepth 58.8%

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: Oct 29
Current: £37,764 GBP|Low: £6,052 GBP|High: £52,885 GBP|Avg: £15,066 GBP|-28.6%
Do Amore Diamonds
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
October 30, 2026
Retailer 6£6,052 GBP
Retailer 12£6,295 GBP
Retailer 13£6,727 GBP
Retailer 3£7,021 GBP
Retailer 7£7,023 GBP
Retailer 10£7,381 GBP
Retailer 8£7,704 GBP
Retailer 11£7,810 GBP
Retailer 4£8,716 GBP
Retailer 2£9,317 GBP
Retailer 9£14,720 GBP
Retailer 5£14,979 GBP
Retailer 14£24,445 GBP
Do Amore Diamonds£37,764 GBP

40 data points across 14 retailers

16 retailers£6,052 GBP to £24,445 GBP

A
Cheapest Retailer
-
£6,052 GBP
$8,109 USD
A
Retailer 2
-
£6,295 GBP
$8,434 USD
View
A
Retailer 3
-
£6,727 GBP
$9,014 USD
View
Retailer 4
-
£7,021 GBP
$9,407 USD
View
Price last confirmed 19 days ago
A
Retailer 5
-
£7,021 GBP
$9,407 USD
View
A
Retailer 6
-
£7,023 GBP
$9,410 USD
View
A
Retailer 7
-
£7,381 GBP
$9,890 USD
View
B+
Retailer 8
-
£7,704 GBP
$10,323 USD
View
B+
Retailer 9
-
£7,810 GBP
$10,464 USD
View
B+
Retailer 10
-
£8,716 GBP
$11,678 USD
View
B+
Retailer 11
-
£9,317 GBP
View
Retailer 12
-
£14,720 GBP
A$30,344 AUD
View
Price last confirmed 9 days ago
B
Retailer 13
-
£14,979 GBP
$20,070 USD
View
B
Retailer 14
-
£24,445 GBP
$32,753 USD
View
Retailer 15
-
£37,764 GBP
$50,600 USD
View
Price under review
Most Expensive
Do Amore Diamonds
23-791632168 · Oct 31
£45,250 GBP
$60,630 USD
View
Price under review
15 more retailers have this diamond
Prices start from £6,052 GBPSave up to £18,393 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
20.05ct Round
£6,052 GBP