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Heart|Lab Grown|IGI

1.50ct D VS1 Heart Lab Grown Diamond

ID • D/VS1 • IGI LG816607655

Shape and cutting style on the report: Heart modified brilliant

Certificate IGI LG816607655

Diamond specifications and retailer prices

From £275 GBP
As of November 6, 2026
Save £1,181 GBP (81%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £1,632 GBP at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.5ct lab-grown heart diamond

This 1.5ct lab-grown heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG816607655 or 816607655. Listed at 23 retailers as of November 5, 2026, with a 430% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle30°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816607655
Dimensions6.82 × 7.71 × 3.96 mm
L/W Ratio1.13
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.82 mm7.71 mm1.50 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816607655
Side View
Table 67.0%Crown 36.4°Girdle: ThickPavilion 30°Culet: NoneDepth 51.4%

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 6
Current: £1,632 GBP|Low: £275 GBP|High: £1,632 GBP|Avg: £765 GBP
Queensmith
Retailer 2
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November 6, 2026
Retailer 4£275 GBP
Retailer 12£308 GBP
Retailer 22£318 GBP
Retailer 3£341 GBP
Retailer 23£341 GBP
Retailer 16£373 GBP
Retailer 2£377 GBP
Retailer 7£421 GBP
Retailer 19£452 GBP
Retailer 8£457 GBP
Retailer 6£530 GBP
Retailer 20£587 GBP
Retailer 13£608 GBP
Retailer 18£794 GBP
Retailer 21£999 GBP
Retailer 14£1,086 GBP
Retailer 5£1,095 GBP
Retailer 11£1,124 GBP
Retailer 10£1,287 GBP
Retailer 9£1,291 GBP
Retailer 17£1,327 GBP
Retailer 15£1,456 GBP
Queensmith£1,632 GBP

32 data points across 23 retailers

23 retailers£275 GBP to £1,456 GBP

A
Cheapest Retailer
-
£275 GBP
A
Retailer 2
-
£308 GBP
View
Final sale: no returns
A
Retailer 3
-
£318 GBP
View
A
Retailer 4
-
£341 GBP
View
Retailer 5
-
£341 GBP
View
Price last confirmed 12 days ago
A
Retailer 6
-
£373 GBP
View
A
Retailer 7
-
£377 GBP
View
B+
Retailer 8
-
£421 GBP
View
B+
Retailer 9
-
£452 GBP
View
B+
Retailer 10
-
£457 GBP
View
B+
Retailer 11
-
£530 GBP
View
B+
Retailer 12
-
£587 GBP
View
B+
Retailer 13
-
£608 GBP
View
B
Retailer 14
-
£794 GBP
View
B
Retailer 15
-
£999 GBP
View
B
Retailer 16
-
£1,086 GBP
View
B
Retailer 17
-
£1,095 GBP
View
B
Retailer 18
-
£1,124 GBP
View
B
Retailer 19
-
£1,287 GBP
View
B
Retailer 20
-
£1,291 GBP
View
B
Retailer 21
-
£1,327 GBP
View
B
Retailer 22
-
£1,456 GBP
View
Most Expensive
Queensmith
LG816607655 · Oct 27
£1,632 GBP
View
Price last confirmed 10 days ago
22 more retailers have this diamond
Prices start from £275 GBPSave up to £1,181 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
1.50ct Heart
£275 GBP