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Radiant|Lab Grown|IGI

1.61ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG733547001

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

Certificate IGI LG733547001

Diamond specifications and retailer prices

From $449 USD
€428 EUR
As of October 31, 2026
Save $650 USD (59%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,100 USD at MOH London · As of October 29, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG733547001 or 733547001. Listed at 7 retailers as of October 29, 2026, with prices from $449 to $1,100, a $650 spread on the same certified stone. MOH London lists it at $1,100. 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
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.1°
Pavilion angle30.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG733547001
Dimensions8.92 × 5.75 × 3.57 mm
L/W Ratio1.55
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.92 mm5.75 mm1.61 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG733547001
Side View
Table 63.0%Crown 38.1°Girdle: Slightly ThickPavilion 30.8°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $1,100 USD|Low: $386 USD|High: $1,106 USD|Avg: $640 USD|+1.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 2$449 USD
Retailer 6$466 USD
Retailer 3$507 USD
Retailer 7$539 USD
Retailer 5$606 USD
Retailer 4$845 USD
MOH London$1,100 USD

32 data points across 7 retailers

7 retailers$449 USD to $1,100 USD

A
Cheapest Retailer
-
$449 USD
€428 EUR
B+
Retailer 2
-
$466 USD
View
A
Retailer 3
-
$507 USD
£399 GBP
View
A
Retailer 4
-
$539 USD
View
B+
Retailer 5
-
$606 USD
View
B
Retailer 6
-
$845 USD
View
Most Expensive
B
MOH London
LG733547001 · Oct 29
$1,100 USD
£866 GBP
View
6 more retailers have this diamond
Prices start from $449 USDSave up to $650 USD

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
$449 USD