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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 $484 AUD
£268 GBP
As of October 31, 2026
Save $21 AUD (4%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $505 AUD at Loose Grown Diamond · As of October 31, 2026
View at Loose Grown Diamond

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 2 retailers as of October 31, 2026, with a relatively tight 4% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
Polish
Symmetry
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
FluorescenceNone
CertificateIGI LG851621135
Side View
Table 65.0%CrownGirdlePavilionCuletDepth 54.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 31
Current: $505 AUD|Low: $484 AUD|High: $505 AUD|Avg: $495 AUD
Loose Grown Diamond
Retailer 2
October 31, 2026
Retailer 2$484 AUD
Loose Grown Diamond$505 AUD

1 data point across 2 retailers

2 retailers$484 AUD to $505 AUD

B+
Cheapest Retailer
-
$484 AUD
£268 GBP
Most Expensive
B
Loose Grown Diamond
851621135 · Oct 31
$505 AUD
$355 USD
View
1 more retailer has this diamond
Prices start from $484 AUDSave up to $21 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.

B+
1.10ct Heart
$484 AUD