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Heart|Lab Grown|IGI

12.64ct H VS1 Heart Lab Grown Diamond

ID • H/VS1 • IGI LG626417683

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG626417683

Diamond specifications and retailer prices

From £3,264 GBP
As of November 1, 2026
Save £11,281 GBP (78%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £14,545 GBP at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 12.64ct lab-grown heart diamond

This 12.64ct lab-grown heart sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG626417683 or 626417683. Listed at 16 retailers as of October 31, 2026, with prices from £3,264 to £14,545, a £11,281 spread on the same certified stone. Taylor and Hart lists it at £14,545. 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

12.64
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle38.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG626417683
Dimensions16.13 × 14.53 × 9.17 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
16.13 mm14.53 mm12.64 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG626417683
Side View
Table 60.0%Crown 37.3°Girdle: MED-THKPavilion 38.8°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: £3,264 GBP|Low: £3,263 GBP|High: £11,296 GBP|Avg: £5,503 GBP|-1.2%
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
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Retailer 15
Retailer 16
November 1, 2026
Retailer 1£3,264 GBP
Retailer 15£3,503 GBP
Retailer 14£3,671 GBP
Retailer 4£3,923 GBP
Retailer 16£4,045 GBP
Retailer 6£4,064 GBP
Retailer 11£4,064 GBP
Retailer 7£4,122 GBP
Retailer 2£4,735 GBP
Retailer 12£5,078 GBP
Retailer 3£6,283 GBP
Retailer 13£6,286 GBP
Retailer 10£6,290 GBP
Retailer 9£6,619 GBP
Retailer 8£9,762 GBP
Retailer 5£11,296 GBP

35 data points across 16 retailers

16 retailers£3,264 GBP to £14,545 GBP

A
Cheapest Retailer
-
£3,264 GBP
A
Retailer 2
-
£3,503 GBP
$4,694 USD
View
A
Retailer 3
-
£3,671 GBP
$4,919 USD
View
A
Retailer 4
-
£3,923 GBP
$5,257 USD
View
Final sale: no returns
A
Retailer 5
-
£4,045 GBP
$5,420 USD
View
A
Retailer 6
-
£4,064 GBP
$5,445 USD
View
Retailer 7
-
£4,064 GBP
$5,445 USD
View
Price last confirmed 20 days ago
B+
Retailer 8
-
£4,122 GBP
$5,523 USD
View
B+
Retailer 9
-
£4,735 GBP
$6,344 USD
View
B+
Retailer 10
-
£5,078 GBP
$6,804 USD
View
B
Retailer 11
-
£6,283 GBP
$8,419 USD
View
B+
Retailer 12
-
£6,286 GBP
$8,423 USD
View
B+
Retailer 13
-
£6,290 GBP
ZAR 136,162 ZAR
View
B
Retailer 14
-
£6,619 GBP
€8,447 EUR
View
B
Retailer 15
-
£11,296 GBP
$15,135 USD
View
Most Expensive
B
Taylor and Hart
O2A74YH · Oct 31
£14,545 GBP
$19,489 USD
View
15 more retailers have this diamond
Prices start from £3,264 GBPSave up to £11,281 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
12.64ct Heart
£3,264 GBP