Round|Lab Grown|IGI

21.00ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG797636225

Shape and cutting style on the report: Round brilliant

Certificate IGI LG797636225

Diamond specifications and retailer prices

From £8,855 GBP

$11,865 USD

As of October 25, 2026

Save £22,736 GBP (72%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: £49,855 GBP at Do Amore Diamonds · As of October 31, 2026

View at Do Amore Diamonds

About this 21ct lab-grown round diamond

This 21ct 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 LG797636225 or 797636225. Listed at 16 retailers as of October 25, 2026, with a 257% 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

21.00

Carat

Colour

VS1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.2°

Pavilion angle40.4°

OriginLab Grown

Grading LabIGI

CertificateIGI LG797636225

Dimensions17.76 × 17.69 × 10.78 mm

L/W Ratio1.00

Girdle conditionFaceted

Culet sizePointed

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG797636225

Side View

Caratlytics Score

How it works →

B+

Very Good

Strong quality and value balance

Unlock full score analysis

See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25

Current: £41,265 GBP|Low: £8,855 GBP|High: £55,385 GBP|Avg: £16,817 GBP|-25.5%

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 31, 2026

Retailer 10£8,855 GBP

Retailer 6£9,211 GBP

Retailer 12£9,580 GBP

Retailer 13£9,772 GBP

Retailer 3£10,685 GBP

Retailer 7£10,687 GBP

Retailer 8£10,898 GBP

Retailer 4£11,054 GBP

Retailer 11£11,337 GBP

Retailer 2£13,746 GBP

Retailer 5£16,970 GBP

Retailer 9£22,227 GBP

Retailer 14£31,591 GBP

Do Amore Diamonds£41,265 GBP

40 data points across 14 retailers

16 retailers£8,855 GBP to £31,591 GBP

B+

Cheapest Retailer

£8,855 GBP

$11,865 USD

B+

Retailer 2

£9,211 GBP

$12,342 USD

View

B+

Retailer 3

£9,580 GBP

$12,836 USD

View

B+

Retailer 4

£9,772 GBP

$13,094 USD

View

Retailer 5

£10,685 GBP

$14,317 USD

View

Price last confirmed 18 days ago

B+

Retailer 6

£10,685 GBP

$14,317 USD

View

B+

Retailer 7

£10,687 GBP

$14,320 USD

View

B+

Retailer 8

£10,898 GBP

$14,602 USD

View

B+

Retailer 9

£11,054 GBP

$14,811 USD

View

B+

Retailer 10

£11,337 GBP

$15,191 USD

View

B+

Retailer 11

£13,746 GBP

View

Retailer 12

£16,970 GBP

$22,738 USD

View

Retailer 13

£22,227 GBP

A$45,818 AUD

View

Price last confirmed 8 days ago

Retailer 14

£31,591 GBP

$42,329 USD

View

Retailer 15

£41,265 GBP

$55,290 USD

View

Price under review

Most Expensive

Do Amore Diamonds

23-797636225 · Oct 31

£49,855 GBP

$66,800 USD

View

Price under review

15 more retailers have this diamond

Prices start from £8,855 GBPSave up to £22,736 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.

Similar diamonds

B+

21.00ct Round

£8,855 GBP