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Heart|Lab Grown|IGI

11.89ct H VS1 Heart Lab Grown Diamond

ID • H/VS1 • IGI LG665415929

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG665415929

Diamond specifications and retailer prices

From £2,965 GBP
$3,973 USD
As of November 1, 2026
Save £8,187 GBP (73%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £11,153 GBP at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 11.89ct lab-grown heart diamond

This 11.89ct 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 LG665415929 or 665415929. Listed at 11 retailers as of October 31, 2026, with prices from £2,965 to £11,153, a £8,187 spread on the same certified stone. Taylor and Hart lists it at £11,153. 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

11.89
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665415929
Dimensions14.20 × 16.00 × 9.09 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
14.20 mm16.00 mm11.89 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665415929
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 37.6°Culet: NoneDepth 56.8%

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: £2,965 GBP|Low: £2,105 GBP|High: £11,153 GBP|Avg: £5,654 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Taylor and Hart
November 1, 2026
Retailer 1£2,965 GBP
Retailer 4£3,158 GBP
Retailer 9£3,276 GBP
Retailer 2£3,716 GBP
Retailer 8£4,274 GBP
Retailer 6£4,892 GBP
Retailer 10£4,900 GBP
Retailer 3£4,903 GBP
Retailer 12£5,432 GBP
Retailer 5£5,919 GBP
Retailer 7£8,434 GBP
Retailer 11£10,744 GBP
Taylor and Hart£11,153 GBP

18 data points across 13 retailers

11 retailers£2,965 GBP to £11,153 GBP

A
Cheapest Retailer
-
£2,965 GBP
$3,973 USD
A
Retailer 2
-
£3,276 GBP
$4,390 USD
View
A
Retailer 3
-
£3,716 GBP
HK$38,900 HKD
View
B+
Retailer 4
-
£4,274 GBP
$5,727 USD
View
B+
Retailer 5
-
£4,892 GBP
ZAR 105,903 ZAR
View
B+
Retailer 6
-
£4,900 GBP
$6,566 USD
View
B+
Retailer 7
-
£5,432 GBP
$7,278 USD
View
B+
Retailer 8
-
£5,919 GBP
A$12,201 AUD
View
B
Retailer 9
-
£8,434 GBP
$11,300 USD
View
B
Retailer 10
-
£10,744 GBP
SGD 19,453 SGD
View
Most Expensive
B
Taylor and Hart
DCS2XKP · Oct 31
£11,153 GBP
$14,943 USD
View
10 more retailers have this diamond
Prices start from £2,965 GBPSave up to £8,187 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
11.89ct Heart
£2,965 GBP