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Heart|Lab Grown|IGI

1.55ct H VS1 Heart Lab Grown Diamond

EX • H/VS1 • IGI LG683595165

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG683595165

Diamond specifications and retailer prices

From £191 GBP
As of November 4, 2026
Save £869 GBP (82%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,060 GBP at With Clarity · As of November 5, 2026
View at With Clarity

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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG683595165 or 683595165. Listed at 18 retailers as of November 4, 2026, with prices from £191 to £1,060, a £869 spread on the same certified stone. With Clarity lists it at £1,060. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
H
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG683595165
Dimensions7.02 × 8.09 × 4.80 mm
L/W Ratio1.15
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
7.02 mm8.09 mm1.55 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG683595165
Side View
Table 64.0%Crown 37.4°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 59.3%

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: £314 GBP|Low: £153 GBP|High: £1,038 GBP|Avg: £455 GBP|-1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
With Clarity
November 5, 2026
Retailer 12£191 GBP
Retailer 3£214 GBP
Retailer 2£237 GBP
Retailer 13£237 GBP
Retailer 1£314 GBP
Retailer 11£357 GBP
Retailer 6£385 GBP
Retailer 5£395 GBP
Retailer 14£396 GBP
Retailer 10£409 GBP
Retailer 4£434 GBP
Retailer 9£554 GBP
Retailer 8£728 GBP
Retailer 7£947 GBP
With Clarity£1,038 GBP

42 data points across 15 retailers

18 retailers£191 GBP to £1,060 GBP

A
Cheapest Retailer
-
£191 GBP
A
Retailer 2
-
£214 GBP
View
Final sale: no returns
A
Retailer 3
-
£221 GBP
View
A
Retailer 4
-
£237 GBP
View
Retailer 5
-
£237 GBP
View
Price last confirmed 11 days ago
A
Retailer 6
-
£314 GBP
View
A
Retailer 7
-
£357 GBP
View
A
Retailer 8
-
£395 GBP
View
A
Retailer 9
-
£396 GBP
View
A
Retailer 10
-
£409 GBP
View
B+
Retailer 11
-
£434 GBP
View
B+
Retailer 12
-
£554 GBP
View
B+
Retailer 13
-
£605 GBP
View
B+
Retailer 14
-
£728 GBP
View
B
Retailer 15
-
£762 GBP
View
B
Retailer 16
-
£800 GBP
View
B
Retailer 17
-
£947 GBP
View
Most Expensive
B
With Clarity
683595165 · Nov 5
£1,060 GBP
$1,426 USD
View
17 more retailers have this diamond
Prices start from £191 GBPSave up to £869 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
£191 GBP