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Radiant|Lab Grown|IGI

1.09ct F SI1 Radiant Lab Grown Diamond

EX • F/SI1 • IGI LG593372655

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

Certificate IGI LG593372655

Diamond specifications and retailer prices

From $475 NZD
$267 USD
As of November 1, 2026
Save $1,340 NZD (74%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $1,815 NZD at MOH London · As of November 2, 2026
View at MOH London

About this 1.09ct lab-grown radiant diamond

This 1.09ct lab-grown radiant 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 LG593372655 or 593372655. Listed at 6 retailers as of November 1, 2026, with prices from $475 to $1,815, a $1,340 spread on the same certified stone. MOH London lists it at $1,815. 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

1.09
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle48°
Pavilion angle36.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG593372655
Dimensions7.20 × 5.07 × 3.43 mm
L/W Ratio1.42
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment.
Top View
7.20 mm5.07 mm1.09 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG593372655
Side View
Table 65.0%Crown 48°Girdle: Slightly ThickPavilion 36.3°Culet: NoneDepth 67.7%

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 1
Current: $1,815 NZD|Low: $475 NZD|High: $1,837 NZD|Avg: $848 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 6$475 NZD
Retailer 3$638 NZD
Retailer 2$696 NZD
Retailer 5$718 NZD
Retailer 4$787 NZD
MOH London$1,815 NZD

40 data points across 6 retailers

6 retailers$475 NZD to $1,815 NZD

A
Cheapest Retailer
-
$475 NZD
$267 USD
A
Retailer 2
-
$638 NZD
$359 USD
View
A
Retailer 3
-
$696 NZD
£309 GBP
View
Retailer 4
-
$718 NZD
$404 USD
View
Price last confirmed 74 days ago
B+
Retailer 5
-
$787 NZD
$443 USD
View
Most Expensive
B
MOH London
LG593372655 · Nov 2
$1,815 NZD
£804 GBP
View
5 more retailers have this diamond
Prices start from $475 NZDSave up to $1,340 NZD

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
1.09ct Radiant
$475 NZD