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Heart|Lab Grown|IGI

1.10ct E SI1 Heart Lab Grown Diamond

ID • E/SI1 • IGI LG851621135

Certificate IGI LG851621135

Diamond specifications and retailer prices

From €302 EUR
$337 USD
As of October 31, 2026
Save €310 EUR (51%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: €611 EUR at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

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 4 retailers as of October 31, 2026, with prices from €302 to €611, a €310 spread on the same certified stone. Taylor and Hart lists it at €611. 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
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG851621135
Dimensions7.11 × 6.84 × 3.90 mm
L/W Ratio1.04
Top View
7.11 mm6.84 mm1.10 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG851621135
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 54.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €302 EUR|Low: €302 EUR|High: €611 EUR|Avg: €384 EUR
Retailer 1
Retailer 2
Retailer 3
Taylor and Hart
October 31, 2026
Retailer 1€302 EUR
Retailer 2€305 EUR
Retailer 3€318 EUR
Taylor and Hart€611 EUR

1 data point across 4 retailers

4 retailers€302 EUR to €611 EUR

B+
Cheapest Retailer
-
€302 EUR
$337 USD
B+
Retailer 2
-
€305 EUR
£268 GBP
View
B+
Retailer 3
-
€318 EUR
$355 USD
View
Most Expensive
B
Taylor and Hart
H6107K3 · Oct 31
€611 EUR
$683 USD
View
3 more retailers have this diamond
Prices start from €302 EURSave up to €310 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.

B+
1.10ct Heart
€302 EUR