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Heart|Lab Grown|IGI

20.61ct G VS1 Heart Lab Grown Diamond

ID • G/VS1 • IGI LG725507684

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG725507684

Diamond specifications and retailer prices

From £12,327 GBP
As of November 2, 2026
Save £16,447 GBP (57%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £28,774 GBP at Aida Diamonds · As of November 1, 2026
View at Aida Diamonds

About this 20.61ct lab-grown heart diamond

This 20.61ct lab-grown heart 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 LG725507684 or 725507684. Listed at 11 retailers as of November 1, 2026, with prices from £12,327 to £28,774, a £16,447 spread on the same certified stone. Aida Diamonds lists it at £28,774. 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

20.61
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG725507684
Dimensions17.60 × 18.87 × 10.84 mm
L/W Ratio1.07
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
17.60 mm18.87 mm20.61 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG725507684
Side View
Table 62.0%Crown 36.1°Girdle: MED-THKPavilion 39.4°Culet: NoneDepth 57.4%

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: Nov 2
Current: £28,774 GBP|Low: £12,327 GBP|High: £28,774 GBP|Avg: £15,224 GBP
Aida Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 2£12,327 GBP
Retailer 8£13,232 GBP
Retailer 7£13,550 GBP
Retailer 6£14,385 GBP
Retailer 3£14,819 GBP
Retailer 4£15,122 GBP
Retailer 10£15,122 GBP
Retailer 9£15,178 GBP
Retailer 5£15,349 GBP
Retailer 11£21,507 GBP
Aida Diamonds£28,774 GBP

11 data points across 11 retailers

11 retailers£12,327 GBP to £28,774 GBP

B+
Cheapest Retailer
-
£12,327 GBP
B
Retailer 2
-
£13,232 GBP
$17,745 USD
View
B
Retailer 3
-
£13,550 GBP
$18,171 USD
View
B
Retailer 4
-
£14,385 GBP
$19,291 USD
View
B
Retailer 5
-
£14,819 GBP
$19,873 USD
View
Final sale: no returns
B
Retailer 6
-
£15,122 GBP
$20,280 USD
View
B
Retailer 7
-
£15,122 GBP
$20,280 USD
View
B
Retailer 8
-
£15,178 GBP
$20,355 USD
View
B
Retailer 9
-
£15,349 GBP
$20,584 USD
View
B
Retailer 10
-
£21,507 GBP
$28,843 USD
View
Most Expensive
B
Aida Diamonds
497452462 · Nov 1
£28,774 GBP
A$59,367 AUD
View
10 more retailers have this diamond
Prices start from £12,327 GBPSave up to £16,447 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.

B+
20.61ct Heart
£12,327 GBP