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Heart|Lab Grown|IGI

12.03ct G VS2 Heart Lab Grown Diamond

VG • G/VS2 • IGI LG683584066

Shape and cutting style on the report: Heart modified brilliant

Certificate IGI LG683584066

Diamond specifications and retailer prices

From £2,657 GBP
$3,560 USD
As of November 1, 2026
Save £6,188 GBP (70%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £8,845 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 G colour (near-colourless) and VS2 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG683584066 or 683584066. Listed at 6 retailers as of October 31, 2026, with prices from £2,657 to £8,845, a £6,188 spread on the same certified stone. Taylor and Hart lists it at £8,845. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

12.03
Carat
G
Colour
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.4°
Pavilion angle32.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG683584066
Dimensions13.11 × 14.95 × 8.51 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
13.11 mm14.95 mm12.03 ctG / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG683584066
Side View
Table 66.0%Crown 43.4°Girdle: MED-STKPavilion 32.4°Culet: NoneDepth 56.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £3,947 GBP|Low: £1,856 GBP|High: £8,845 GBP|Avg: £4,132 GBP|-5.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Taylor and Hart
November 1, 2026
Retailer 7£2,599 GBP
Retailer 3£2,657 GBP
Retailer 6£2,932 GBP
Retailer 2£3,431 GBP
Retailer 1£3,947 GBP
Retailer 8£3,951 GBP
Retailer 4£6,374 GBP
Retailer 5£6,378 GBP
Taylor and Hart£8,845 GBP

11 data points across 9 retailers

6 retailers£2,657 GBP to £8,845 GBP

A
Cheapest Retailer
-
£2,657 GBP
$3,560 USD
A
Retailer 2
-
£3,431 GBP
View
B+
Retailer 3
-
£3,947 GBP
$5,288 USD
View
B
Retailer 4
-
£6,374 GBP
$8,541 USD
View
B
Retailer 5
-
£6,378 GBP
$8,546 USD
View
Most Expensive
B
Taylor and Hart
NR51XYH · Oct 31
£8,845 GBP
$11,851 USD
View
5 more retailers have this diamond
Prices start from £2,657 GBPSave up to £6,188 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
£2,657 GBP