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Heart|Lab Grown|IGI

1.87ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG835609034

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG835609034

Diamond specifications and retailer prices

From £193 GBP
$257 USD
As of October 23, 2026
Save £766 GBP (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £959 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 1.87ct lab-grown heart diamond

This 1.87ct lab-grown heart sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG835609034 or 835609034. Listed at 14 retailers as of October 23, 2026, with prices from £193 to £959, a £766 spread on the same certified stone. MOH London lists it at £959. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.87
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG835609034
Dimensions8.74 × 7.38 × 5.00 mm
L/W Ratio1.18
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.74 mm7.38 mm1.87 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG835609034
Side View
Table 54.0%Crown 35.3°Girdle: MED-STKPavilion 37.5°Culet: NoneDepth 57.2%

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: Oct 23
Current: £959 GBP|Low: £216 GBP|High: £980 GBP|Avg: £526 GBP|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 27, 2026
Retailer 8£216 GBP
Retailer 4£269 GBP
Retailer 2£307 GBP
Retailer 5£360 GBP
Retailer 7£399 GBP
Retailer 3£453 GBP
Retailer 9£516 GBP
Retailer 6£604 GBP
Retailer 10£769 GBP
MOH London£959 GBP

35 data points across 10 retailers

14 retailers£193 GBP to £959 GBP

A
Cheapest Retailer
-
£193 GBP
$257 USD
A
Retailer 2
-
£216 GBP
$287 USD
View
Final sale: no returns
A
Retailer 3
-
£224 GBP
$298 USD
View
A
Retailer 4
-
£239 GBP
$318 USD
View
A
Retailer 5
-
£269 GBP
HK$2,800 HKD
View
A
Retailer 6
-
£307 GBP
View
A
Retailer 7
-
£360 GBP
$480 USD
View
B+
Retailer 8
-
£399 GBP
$531 USD
View
B+
Retailer 9
-
£453 GBP
View
B+
Retailer 10
-
£516 GBP
$687 USD
View
B+
Retailer 11
-
£604 GBP
$804 USD
View
B
Retailer 12
-
£768 GBP
$1,023 USD
View
B
Retailer 13
-
£769 GBP
SGD 1,383 SGD
View
Most Expensive
B
MOH London
LG835609034 · Oct 26
£959 GBP
View
13 more retailers have this diamond
Prices start from £193 GBPSave up to £766 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
1.87ct Heart
£193 GBP