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Heart|Lab Grown|IGI

1.00ct E SI2 Heart Lab Grown Diamond

ID • E/SI2 • IGI LG831648756

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG831648756

Diamond specifications and retailer prices

From €183 EUR
HK$1,600 HKD
As of October 30, 2026
Save €551 EUR (75%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €734 EUR at MOH London · As of October 26, 2026
View at MOH London

About this 1ct lab-grown heart diamond

This 1ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG831648756 or 831648756. Listed at 15 retailers as of October 26, 2026, with prices from €183 to €734, a €551 spread on the same certified stone. MOH London lists it at €734. 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

1.00
Carat
E
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831648756
Dimensions6.84 × 6.22 × 4.06 mm
L/W Ratio1.10
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.84 mm6.22 mm1.00 ctE / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831648756
Side View
Table 66.0%Crown 34.1°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 59.4%

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: €734 EUR|Low: €138 EUR|High: €741 EUR|Avg: €367 EUR|+1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 4€141 EUR
Retailer 10€183 EUR
Retailer 12€211 EUR
Retailer 11€237 EUR
Retailer 8€267 EUR
Retailer 7€272 EUR
Retailer 3€292 EUR
Retailer 9€337 EUR
Retailer 5€393 EUR
Retailer 2€429 EUR
Retailer 6€501 EUR
MOH London€734 EUR

40 data points across 12 retailers

15 retailers€183 EUR to €734 EUR

Retailer 1
-
€126 EUR
$141 USD
Price last confirmed 14 days ago
Retailer 2
-
€147 EUR
$164 USD
View
Price last confirmed 17 days ago
Retailer 3
-
€157 EUR
$175 USD
View
Price last confirmed 16 days ago
A
Retailer 4
-
€183 EUR
HK$1,600 HKD
View
Retailer 5
-
€211 EUR
£185 GBP
View
Price last confirmed 14 days ago
B+
Retailer 6
-
€237 EUR
$265 USD
View
B+
Retailer 7
-
€267 EUR
£235 GBP
View
B+
Retailer 8
-
€272 EUR
View
B+
Retailer 9
-
€292 EUR
$326 USD
View
B+
Retailer 10
-
€337 EUR
£296 GBP
View
B
Retailer 11
-
€393 EUR
$439 USD
View
B+
Retailer 12
-
€429 EUR
SGD 648 SGD
View
B
Retailer 13
-
€501 EUR
$560 USD
View
Retailer 14
-
€504 EUR
$563 USD
View
Price last confirmed 15 days ago
Most Expensive
B
MOH London
LG831648756 · Oct 26
€734 EUR
£646 GBP
View
14 more retailers have this diamond
Prices start from €183 EURSave up to €551 EUR

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
1.00ct Heart
€183 EUR