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Radiant|Lab Grown|IGI

1.61ct F SI1 Radiant Lab Grown Diamond

EX • F/SI1 • IGI LG629440726

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG629440726

Diamond specifications and retailer prices

From $287 AUD
$201 USD
As of November 2, 2026
Save $1,379 AUD (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,665 AUD at MOH London · As of November 2, 2026
View at MOH London

About this 1.61ct lab-grown radiant diamond

This 1.61ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG629440726 or 629440726. Listed at 15 retailers as of November 2, 2026, with prices from $287 to $1,665, a $1,379 spread on the same certified stone. MOH London lists it at $1,665. 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

1.61
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.7°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG629440726
Dimensions8.39 × 5.86 × 3.86 mm
L/W Ratio1.43
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.39 mm5.86 mm1.61 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG629440726
Side View
Table 64.0%Crown 42.7°Girdle: Slightly ThickPavilion 34.8°Culet: NoneDepth 65.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: $1,665 AUD|Low: $285 AUD|High: $1,665 AUD|Avg: $708 AUD|+12.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 3, 2026
Retailer 5$287 AUD
Retailer 6$321 AUD
Retailer 3$332 AUD
Retailer 11$357 AUD
Retailer 7$368 AUD
Retailer 15$478 AUD
Retailer 8$649 AUD
Retailer 2$653 AUD
Retailer 12$728 AUD
Retailer 4$735 AUD
Retailer 10$919 AUD
Retailer 13$1,144 AUD
Retailer 14$1,334 AUD
Retailer 9$1,527 AUD
MOH London$1,665 AUD

45 data points across 15 retailers

15 retailers$287 AUD to $1,665 AUD

A
Cheapest Retailer
-
$287 AUD
$201 USD
A
Retailer 2
-
$321 AUD
$225 USD
View
Final sale: no returns
A
Retailer 3
-
$332 AUD
$233 USD
View
A
Retailer 4
-
$357 AUD
$250 USD
View
Retailer 5
-
$368 AUD
$258 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$478 AUD
$335 USD
View
A
Retailer 7
-
$649 AUD
€433 EUR
View
A
Retailer 8
-
$653 AUD
£361 GBP
View
A
Retailer 9
-
$728 AUD
$510 USD
View
A
Retailer 10
-
$735 AUD
$515 USD
View
B+
Retailer 11
-
$919 AUD
$644 USD
View
B+
Retailer 12
-
$1,144 AUD
$802 USD
View
B+
Retailer 13
-
$1,334 AUD
$935 USD
View
B
Retailer 14
-
$1,527 AUD
$1,070 USD
View
Most Expensive
B
MOH London
LG629440726 · Nov 2
$1,665 AUD
£919 GBP
View
14 more retailers have this diamond
Prices start from $287 AUDSave up to $1,379 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
1.61ct Radiant
$287 AUD