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Heart|Lab Grown|IGI

12.03ct F VS2 Heart Lab Grown Diamond

EX • F/VS2 • IGI LG679516450

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG679516450

Diamond specifications and retailer prices

From £3,997 GBP
As of November 2, 2026
Save £13,486 GBP (77%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £17,483 GBP at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 12.03ct lab-grown heart diamond

This 12.03ct lab-grown heart sits in the over five carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG679516450 or 679516450. Listed at 17 retailers as of October 31, 2026, with prices from £3,997 to £17,483, a £13,486 spread on the same certified stone. Taylor and Hart lists it at £17,483. 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

12.03
Carat
F
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG679516450
Dimensions13.90 × 15.66 × 9.58 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.90 mm15.66 mm12.03 ctF / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG679516450
Side View
Table 58.0%Crown 35.7°Girdle: STK-THKPavilion 40.2°Culet: NoneDepth 61.2%

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 2
Current: £11,989 GBP|Low: £3,996 GBP|High: £13,845 GBP|Avg: £6,577 GBP|+21.5%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 3, 2026
Retailer 12£3,997 GBP
Retailer 15£4,291 GBP
Retailer 6£4,496 GBP
Retailer 5£4,805 GBP
Retailer 8£4,830 GBP
Retailer 7£4,977 GBP
Retailer 16£4,977 GBP
Retailer 3£4,978 GBP
Retailer 11£5,689 GBP
Retailer 4£5,908 GBP
Retailer 10£6,334 GBP
Retailer 14£7,559 GBP
Retailer 17£7,684 GBP
Retailer 9£7,904 GBP
Retailer 13£8,275 GBP
Retailer 1£11,989 GBP
Retailer 2£13,845 GBP

39 data points across 17 retailers

17 retailers£3,997 GBP to £17,483 GBP

A
Cheapest Retailer
-
£3,997 GBP
Retailer 2
-
£4,291 GBP
$5,758 USD
View
Price last confirmed 12 days ago
Retailer 3
-
£4,496 GBP
$6,034 USD
View
Price last confirmed 13 days ago
B+
Retailer 4
-
£4,805 GBP
$6,448 USD
View
Final sale: no returns
B+
Retailer 5
-
£4,830 GBP
$6,482 USD
View
Retailer 6
-
£4,977 GBP
$6,679 USD
View
Price last confirmed 12 days ago
Retailer 7
-
£4,977 GBP
$6,679 USD
View
Price last confirmed 21 days ago
B+
Retailer 8
-
£4,978 GBP
$6,680 USD
View
B+
Retailer 9
-
£5,689 GBP
$7,634 USD
View
Retailer 10
-
£5,908 GBP
$7,928 USD
View
Price last confirmed 12 days ago
B+
Retailer 11
-
£6,334 GBP
View
B
Retailer 12
-
£7,559 GBP
$10,144 USD
View
B
Retailer 13
-
£7,684 GBP
$10,311 USD
View
B
Retailer 14
-
£8,275 GBP
A$17,083 AUD
View
B
Retailer 15
-
£11,989 GBP
$16,088 USD
View
B
Retailer 16
-
£13,845 GBP
$18,579 USD
View
Most Expensive
B
Taylor and Hart
2RMUQU0 · Oct 31
£17,483 GBP
$23,461 USD
View
16 more retailers have this diamond
Prices start from £3,997 GBPSave up to £13,486 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
12.03ct Heart
£3,997 GBP