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Heart|Lab Grown|IGI

1.10ct E SI1 Heart Lab Grown Diamond

EX • E/SI1 • IGI LG837671345

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG837671345

Diamond specifications and retailer prices

From $176 USD
As of October 30, 2026
Save $180 USD (51%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $356 USD at 77 Diamonds · As of October 30, 2026
View at 77 Diamonds

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 LG837671345 or 837671345. Listed at 2 retailers as of October 30, 2026, with prices from $176 to $356, a $180 spread on the same certified stone. 77 Diamonds lists it at $356. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837671345
Dimensions6.25 × 7.18 × 4.26 mm
L/W Ratio1.15
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.25 mm7.18 mm1.10 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837671345
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 59.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $356 USD|Low: $176 USD|High: $408 USD|Avg: $339 USD|-12.2%
77 Diamonds
Retailer 2
October 30, 2026
Retailer 2$176 USD
77 Diamonds$356 USD

32 data points across 2 retailers

2 retailers$176 USD to $356 USD

A
Cheapest Retailer
-
$176 USD
Final sale: no returns
Most Expensive
B+
77 Diamonds
HSTVSM7VRVKXK · Oct 30
$356 USD
£280 GBP
View
1 more retailer has this diamond
Prices start from $176 USDSave up to $180 USD

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
$176 USD