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Heart|Lab Grown|IGI

12.53ct E VS1 Heart Lab Grown Diamond

EX • E/VS1 • IGI LG669458684

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG669458684

Diamond specifications and retailer prices

From £2,940 GBP
As of October 30, 2026
Save £15,434 GBP (84%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £18,375 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 12.53ct lab-grown heart diamond

This 12.53ct lab-grown heart sits in the over five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG669458684 or 669458684. Listed at 21 retailers as of October 30, 2026, with prices from £2,940 to £18,375, a £15,434 spread on the same certified stone. Brilliant Earth lists it at £18,375. 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

12.53
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.3°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG669458684
Dimensions14.42 × 16.48 × 9.21 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.42 mm16.48 mm12.53 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG669458684
Side View
Table 65.0%Crown 31.3°Girdle: STK-THKPavilion 39.4°Culet: NoneDepth 55.9%

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: Oct 30
Current: £18,375 GBP|Low: £2,940 GBP|High: £21,651 GBP|Avg: £6,530 GBP|-15.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 11
Retailer 12
Retailer 13
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Retailer 15
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Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 31, 2026
Retailer 14£2,940 GBP
Retailer 8£3,147 GBP
Retailer 3£3,297 GBP
Retailer 20£3,523 GBP
Retailer 16£3,650 GBP
Retailer 17£3,761 GBP
Retailer 11£3,779 GBP
Retailer 5£3,780 GBP
Retailer 18£4,561 GBP
Retailer 2£4,684 GBP
Retailer 13£4,750 GBP
Retailer 12£5,504 GBP
Retailer 15£5,650 GBP
Retailer 9£7,149 GBP
Retailer 6£8,101 GBP
Retailer 19£8,472 GBP
Retailer 10£8,543 GBP
Retailer 4£10,140 GBP
Retailer 7£12,990 GBP
Brilliant Earth£18,375 GBP

36 data points across 20 retailers

21 retailers£2,940 GBP to £18,375 GBP

A
Cheapest Retailer
-
£2,940 GBP
A
Retailer 2
-
£3,147 GBP
$4,216 USD
View
A
Retailer 3
-
£3,297 GBP
$4,418 USD
View
A
Retailer 4
-
£3,523 GBP
$4,721 USD
View
Final sale: no returns
A
Retailer 5
-
£3,650 GBP
$4,891 USD
View
B+
Retailer 6
-
£3,761 GBP
$5,039 USD
View
Retailer 7
-
£3,779 GBP
$5,063 USD
View
Price last confirmed 19 days ago
B+
Retailer 8
-
£3,780 GBP
$5,065 USD
View
B+
Retailer 9
-
£4,561 GBP
$6,111 USD
View
B+
Retailer 10
-
£4,684 GBP
View
B+
Retailer 11
-
£4,750 GBP
$6,364 USD
View
B+
Retailer 12
-
£5,504 GBP
$7,375 USD
View
B+
Retailer 13
-
£5,650 GBP
ZAR 122,292 ZAR
View
Retailer 14
-
£7,149 GBP
A$14,736 AUD
View
Price last confirmed 9 days ago
B
Retailer 15
-
£8,101 GBP
$10,854 USD
View
B
Retailer 16
-
£8,472 GBP
$11,351 USD
View
Retailer 17
-
£8,543 GBP
A$17,611 AUD
View
Price last confirmed 23 days ago
B
Retailer 18
-
£9,587 GBP
$12,846 USD
View
B
Retailer 19
-
£10,140 GBP
$13,587 USD
View
B
Retailer 20
-
£12,990 GBP
$17,406 USD
View
Most Expensive
B
Brilliant Earth
13435437A · Oct 31
£18,375 GBP
$24,620 USD
View
20 more retailers have this diamond
Prices start from £2,940 GBPSave up to £15,434 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
12.53ct Heart
£2,940 GBP