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Radiant|Lab Grown|IGI

1.05ct E SI1 Radiant Lab Grown Diamond

VG • E/SI1 • IGI LG492136441

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

Certificate IGI LG492136441

Diamond specifications and retailer prices

From $1,205 SGD
$940 USD
As of October 29, 2026
Save $509 SGD (30%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $1,714 SGD at Loose Grown Diamond · As of October 28, 2026
View at Loose Grown Diamond

About this 1.05ct lab-grown radiant diamond

This 1.05ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG492136441 or 492136441. Listed at 5 retailers as of October 28, 2026, with prices from $1,205 to $1,714, a $509 spread on the same certified stone. Loose Grown Diamond lists it at $1,714. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.05
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.2°
Pavilion angle32.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492136441
Dimensions7.10 × 4.98 × 3.44 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
7.10 mm4.98 mm1.05 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492136441
Side View
Table 65.5%Crown 40.2°Girdle: MediumPavilion 32.1°Culet: NoneDepth 69.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 29
Current: $1,714 SGD|Low: $1,205 SGD|High: $4,191 SGD|Avg: $2,188 SGD|+1.9%
Loose Grown Diamond
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 4$1,205 SGD
Retailer 5$1,665 SGD
Retailer 2$1,686 SGD
Loose Grown Diamond$1,714 SGD
Retailer 6$3,021 SGD
Retailer 3$4,148 SGD

41 data points across 6 retailers

5 retailers$1,205 SGD to $1,714 SGD

B
Cheapest Retailer
-
$1,205 SGD
$940 USD
B
Retailer 2
-
$1,686 SGD
£1,036 GBP
View
Most Expensive
C
Loose Grown Diamond
492136441 · Oct 28
$1,714 SGD
$1,337 USD
View
2 more retailers have this diamond
Prices start from $1,205 SGDSave up to $509 SGD

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
1.05ct Radiant
$1,205 SGD