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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 $365 AUD
$257 USD
As of October 23, 2026
Save $1,451 AUD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,817 AUD 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 $365 to $1,817, a $1,451 spread on the same certified stone. MOH London lists it at $1,817. 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

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 23
Current: $1,817 AUD|Low: $408 AUD|High: $1,856 AUD|Avg: $996 AUD|-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$408 AUD
Retailer 4$510 AUD
Retailer 2$581 AUD
Retailer 5$683 AUD
Retailer 7$755 AUD
Retailer 3$859 AUD
Retailer 9$977 AUD
Retailer 6$1,143 AUD
Retailer 10$1,455 AUD
MOH London$1,817 AUD

35 data points across 10 retailers

14 retailers$365 AUD to $1,817 AUD

A
Cheapest Retailer
-
$365 AUD
$257 USD
A
Retailer 2
-
$408 AUD
$287 USD
View
Final sale: no returns
A
Retailer 3
-
$424 AUD
$298 USD
View
A
Retailer 4
-
$452 AUD
$318 USD
View
A
Retailer 5
-
$510 AUD
HK$2,800 HKD
View
A
Retailer 6
-
$581 AUD
£322 GBP
View
A
Retailer 7
-
$683 AUD
$480 USD
View
B+
Retailer 8
-
$755 AUD
$531 USD
View
B+
Retailer 9
-
$859 AUD
£475 GBP
View
B+
Retailer 10
-
$977 AUD
$687 USD
View
B+
Retailer 11
-
$1,143 AUD
$804 USD
View
B
Retailer 12
-
$1,455 AUD
$1,023 USD
View
B
Retailer 13
-
$1,455 AUD
SGD 1,383 SGD
View
Most Expensive
B
MOH London
LG835609034 · Oct 26
$1,817 AUD
£1,006 GBP
View
13 more retailers have this diamond
Prices start from $365 AUDSave up to $1,451 AUD

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
$365 AUD