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Heart|Lab Grown|IGI

1.55ct E VVS1 Heart Lab Grown Diamond

ID • E/VVS1 • IGI LG816615869

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG816615869

Diamond specifications and retailer prices

From £190 GBP
$255 USD
As of October 30, 2026
Save £743 GBP (80%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,254 GBP at Brilliant Earth · As of October 12, 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 E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG816615869 or 816615869. Listed at 20 retailers as of October 26, 2026, with a 391% 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
E
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816615869
Dimensions8.09 × 7.36 × 4.48 mm
L/W Ratio1.10
Girdle conditionFaceted
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
8.09 mm7.36 mm1.55 ctE / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816615869
Side View
Table 58.0%Crown 36.1°Girdle: MED-THKPavilion 39.5°Culet: NoneDepth 55.4%

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: Oct 30
Current: £1,254 GBP|Low: £183 GBP|High: £1,254 GBP|Avg: £563 GBP
Brilliant Earth
Retailer 2
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October 30, 2026
Retailer 2£190 GBP
Retailer 4£212 GBP
Retailer 12£218 GBP
Retailer 10£233 GBP
Retailer 18£236 GBP
Retailer 20£355 GBP
Retailer 19£382 GBP
Retailer 13£394 GBP
Retailer 7£400 GBP
Retailer 15£449 GBP
Retailer 16£486 GBP
Retailer 8£542 GBP
Retailer 11£584 GBP
Retailer 3£737 GBP
Retailer 6£758 GBP
Retailer 5£768 GBP
Retailer 17£797 GBP
Retailer 14£845 GBP
Retailer 9£934 GBP
Brilliant Earth£1,254 GBP

31 data points across 20 retailers

20 retailers£190 GBP to £934 GBP

A
Cheapest Retailer
-
£190 GBP
$255 USD
A
Retailer 2
-
£212 GBP
$284 USD
View
Final sale: no returns
A
Retailer 3
-
£218 GBP
$292 USD
View
A
Retailer 4
-
£233 GBP
$312 USD
View
A
Retailer 5
-
£236 GBP
$316 USD
View
A
Retailer 6
-
£355 GBP
$475 USD
View
A
Retailer 7
-
£382 GBP
€487 EUR
View
A
Retailer 8
-
£394 GBP
$528 USD
View
A
Retailer 9
-
£400 GBP
ZAR 8,654 ZAR
View
B+
Retailer 10
-
£449 GBP
View
B+
Retailer 11
-
£486 GBP
$651 USD
View
B+
Retailer 12
-
£542 GBP
A$1,118 AUD
View
B+
Retailer 13
-
£584 GBP
$783 USD
View
B+
Retailer 14
-
£737 GBP
$987 USD
View
B+
Retailer 15
-
£758 GBP
$1,016 USD
View
B+
Retailer 16
-
£768 GBP
SGD 1,391 SGD
View
B
Retailer 17
-
£797 GBP
$1,068 USD
View
B+
Retailer 18
-
£845 GBP
$1,132 USD
View
B
Retailer 19
-
£934 GBP
View
Most Expensive
Brilliant Earth
21421327A · Oct 12
£1,254 GBP
$1,680 USD
View
Price last confirmed 18 days ago
19 more retailers have this diamond
Prices start from £190 GBPSave up to £743 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
£190 GBP