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Heart|Lab Grown|IGI

1.05ct D SI1 Heart Lab Grown Diamond

EX • D/SI1 • IGI LG842651671

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG842651671

Diamond specifications and retailer prices

From $269 AUD
As of November 6, 2026
Save $706 AUD (72%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $975 AUD at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

About this 1.05ct lab-grown heart diamond

This 1.05ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG842651671 or 842651671. Listed at 3 retailers as of November 6, 2026, with prices from $269 to $975, a $706 spread on the same certified stone. Brilliant Earth lists it at $975. 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

1.05
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle39.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842651671
Dimensions6.23 × 6.98 × 4.15 mm
L/W Ratio1.12
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.23 mm6.98 mm1.05 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842651671
Side View
Table 58.0%Crown 33.5°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 59.5%

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: $975 AUD|Low: $269 AUD|High: $1,543 AUD|Avg: $816 AUD|-36.8%
Brilliant Earth
Retailer 2
Retailer 3
November 6, 2026
Retailer 3$269 AUD
Retailer 2$544 AUD
Brilliant Earth$975 AUD

28 data points across 3 retailers

3 retailers$269 AUD to $975 AUD

A
Cheapest Retailer
-
$269 AUD
Final sale: no returns
B+
Retailer 2
-
$544 AUD
View
Most Expensive
B
Brilliant Earth
21744055A · Nov 6
$975 AUD
$670 USD
View
2 more retailers have this diamond
Prices start from $269 AUDSave up to $706 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.

A
1.05ct Heart
$269 AUD