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Heart|Lab Grown|IGI

1.10ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG851621135

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG851621135

Diamond specifications and retailer prices

From €158 EUR
As of November 6, 2026
Save €658 EUR (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €816 EUR at MOH London · As of November 4, 2026
View at MOH London

About this 1.1ct lab-grown heart diamond

This 1.1ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG851621135 or 851621135. Listed at 10 retailers as of November 4, 2026, with prices from €158 to €816, a €658 spread on the same certified stone. MOH London lists it at €816. 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

1.10
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle29.9°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG851621135
Dimensions7.11 × 6.84 × 3.90 mm
L/W Ratio1.04
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.11 mm6.84 mm1.10 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851621135
Side View
Table 65.0%Crown 29.9°Girdle: STK-THKPavilion 38.7°Culet: NoneDepth 54.9%

Caratlytics Score

How it works →
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 6
Current: €816 EUR|Low: €158 EUR|High: €818 EUR|Avg: €371 EUR|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 7€158 EUR
Retailer 2€226 EUR
Retailer 8€237 EUR
Retailer 5€301 EUR
Retailer 9€302 EUR
Retailer 3€304 EUR
Retailer 6€332 EUR
Retailer 4€459 EUR
Retailer 10€612 EUR
MOH London€816 EUR

7 data points across 10 retailers

10 retailers€158 EUR to €816 EUR

A
Cheapest Retailer
-
€158 EUR
Final sale: no returns
A
Retailer 2
-
€226 EUR
View
B+
Retailer 3
-
€237 EUR
View
B+
Retailer 4
-
€301 EUR
View
B+
Retailer 5
-
€302 EUR
View
B+
Retailer 6
-
€304 EUR
View
B+
Retailer 7
-
€332 EUR
View
B+
Retailer 8
-
€459 EUR
View
B
Retailer 9
-
€612 EUR
View
Most Expensive
B
MOH London
LG851621135 · Nov 4
€816 EUR
£717 GBP
View
9 more retailers have this diamond
Prices start from €158 EURSave up to €658 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
1.10ct Heart
€158 EUR