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Heart|Lab Grown|IGI

1.55ct D VVS1 Heart Lab Grown Diamond

EX • D/VVS1 • IGI LG654413567

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG654413567

Diamond specifications and retailer prices

From £213 GBP
As of November 4, 2026
Save £1,015 GBP (83%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £1,593 GBP at Brilliant Earth · As of September 24, 2026
View at Brilliant Earth

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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG654413567 or 654413567. Listed at 26 retailers as of October 30, 2026, with a 476% 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
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG654413567
Dimensions7.17 × 7.83 × 4.73 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.17 mm7.83 mm1.55 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG654413567
Side View
Table 59.0%Crown 36.2°Girdle: STK-THKPavilion 39.6°Culet: NoneDepth 60.4%

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 4
Current: £461 GBP|Low: £212 GBP|High: £1,244 GBP|Avg: £566 GBP|+0.6%
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November 5, 2026
Retailer 6£213 GBP
Retailer 3£239 GBP
Retailer 14£248 GBP
Retailer 9£265 GBP
Retailer 13£265 GBP
Retailer 16£279 GBP
Retailer 4£381 GBP
Retailer 10£436 GBP
Retailer 20£442 GBP
Retailer 19£456 GBP
Retailer 8£459 GBP
Retailer 1£461 GBP
Retailer 22£504 GBP
Retailer 5£531 GBP
Retailer 18£621 GBP
Retailer 17£814 GBP
Retailer 7£852 GBP
Retailer 15£887 GBP
Retailer 21£1,019 GBP
Retailer 12£1,059 GBP
Retailer 11£1,093 GBP
Retailer 2£1,228 GBP

31 data points across 22 retailers

26 retailers£213 GBP to £1,228 GBP

A
Cheapest Retailer
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£213 GBP
A
Retailer 2
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£239 GBP
View
Final sale: no returns
A
Retailer 3
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£248 GBP
View
A
Retailer 4
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£265 GBP
View
Retailer 5
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£265 GBP
View
Price last confirmed 11 days ago
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Retailer 6
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£279 GBP
View
A
Retailer 7
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£381 GBP
View
B+
Retailer 8
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£436 GBP
View
B+
Retailer 9
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£442 GBP
View
B+
Retailer 10
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£456 GBP
View
B+
Retailer 11
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£459 GBP
View
B+
Retailer 12
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£461 GBP
View
B+
Retailer 13
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£504 GBP
View
B+
Retailer 14
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£531 GBP
View
B+
Retailer 15
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£621 GBP
View
B+
Retailer 16
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£724 GBP
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B
Retailer 17
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£814 GBP
View
B
Retailer 18
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£852 GBP
View
B
Retailer 19
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£872 GBP
View
B
Retailer 20
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£887 GBP
View
B
Retailer 21
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£973 GBP
View
B
Retailer 22
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£1,019 GBP
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B
Retailer 23
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£1,059 GBP
View
B
Retailer 24
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£1,093 GBP
View
B
Retailer 25
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£1,228 GBP
View
Most Expensive
Brilliant Earth
13246762A · Sep 24
£1,593 GBP
$2,150 USD
View
Price last confirmed 41 days ago
25 more retailers have this diamond
Prices start from £213 GBPSave up to £1,015 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
£213 GBP