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Cushion|Lab Grown|IGI

1.00ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG836640729

Certificate IGI LG836640729

Diamond specifications and retailer prices

From $611 AUD
€408 EUR
As of November 2, 2026
Save $630 AUD (51%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,241 AUD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1ct lab-grown cushion diamond

This 1ct lab-grown cushion sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG836640729 or 836640729. Listed at 2 retailers as of November 2, 2026, with prices from $611 to $1,241, a $630 spread on the same certified stone. Brilliant Earth lists it at $1,241. 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

1.00
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG836640729
Dimensions5.76 × 5.69 × 3.82 mm
L/W Ratio1.01
Top View
5.76 mm5.69 mm1.00 ctF / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG836640729
Side View
Table 62.0%CrownGirdlePavilionCuletDepth 67.1%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: $1,241 AUD|Low: $611 AUD|High: $1,241 AUD|Avg: $1,031 AUD
Brilliant Earth
Retailer 2
November 2, 2026
Retailer 2$611 AUD
Brilliant Earth$1,241 AUD

2 data points across 2 retailers

2 retailers$611 AUD to $1,241 AUD

B+
Cheapest Retailer
-
$611 AUD
€408 EUR
Most Expensive
C
Brilliant Earth
22297006A · Nov 2
$1,241 AUD
$870 USD
View
1 more retailer has this diamond
Prices start from $611 AUDSave up to $630 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+
1.00ct Cushion
$611 AUD