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Heart|Lab Grown|IGI

1.55ct D VS1 Heart Lab Grown Diamond

ID • D/VS1 • IGI LG775619781

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG775619781

Diamond specifications and retailer prices

From £239 GBP
As of November 6, 2026
Save £1,883 GBP (89%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £2,346 GBP at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 1.55ct lab-grown heart diamond

This 1.55ct 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 LG775619781 or 775619781. Listed at 25 retailers as of November 6, 2026, with a 788% 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

1.55
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.2°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG775619781
Dimensions7.15 × 7.80 × 4.68 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.15 mm7.80 mm1.55 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG775619781
Side View
Table 61.0%Crown 38.2°Girdle: MED-THKPavilion 39.7°Culet: NoneDepth 60.0%

Caratlytics Score

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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 6
Current: £656 GBP|Low: £229 GBP|High: £1,293 GBP|Avg: £623 GBP
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
November 7, 2026
Retailer 3£239 GBP
Retailer 8£267 GBP
Retailer 4£297 GBP
Retailer 11£374 GBP
Retailer 9£394 GBP
Retailer 2£411 GBP
Retailer 7£546 GBP
Retailer 16£552 GBP
Retailer 13£554 GBP
Retailer 14£584 GBP
Retailer 1£656 GBP
Retailer 15£768 GBP
Retailer 17£869 GBP
Retailer 6£870 GBP
Retailer 5£1,139 GBP
Retailer 12£1,246 GBP
Retailer 10£1,271 GBP

45 data points across 17 retailers

25 retailers£239 GBP to £2,122 GBP

A
Cheapest Retailer
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£239 GBP
A
Retailer 2
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£267 GBP
View
Final sale: no returns
A
Retailer 3
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£277 GBP
View
A
Retailer 4
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£297 GBP
View
A
Retailer 5
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£297 GBP
View
A
Retailer 6
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£331 GBP
View
A
Retailer 7
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£374 GBP
View
A
Retailer 8
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£394 GBP
View
A
Retailer 9
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£411 GBP
View
B+
Retailer 10
-
£546 GBP
View
B+
Retailer 11
-
£552 GBP
View
B+
Retailer 12
-
£554 GBP
View
B+
Retailer 13
-
£584 GBP
View
B+
Retailer 14
-
£656 GBP
View
B+
Retailer 15
-
£768 GBP
View
B
Retailer 16
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£869 GBP
View
Retailer 17
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£870 GBP
View
Price last confirmed 37 days ago
B
Retailer 18
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£1,052 GBP
View
B
Retailer 19
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£1,139 GBP
View
B
Retailer 20
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£1,169 GBP
View
B
Retailer 21
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£1,174 GBP
View
B
Retailer 22
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£1,246 GBP
View
B
Retailer 23
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£1,271 GBP
View
B
Retailer 24
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£2,122 GBP
View
Most Expensive
Do Amore Diamonds
23-775619781 · Nov 6
£2,346 GBP
$3,140 USD
View
Price under review
24 more retailers have this diamond
Prices start from £239 GBPSave up to £1,883 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
1.55ct Heart
£239 GBP