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Radiant|Lab Grown|IGI

1.00ct G SI1 Radiant Lab Grown Diamond

ID • G/SI1 • IGI LG570331905

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

Certificate IGI LG570331905

Diamond specifications and retailer prices

From $142 SGD
$111 USD
As of November 2, 2026
Save $1,331 SGD (90%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,473 SGD at MOH London · As of October 26, 2026
View at MOH London

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG570331905 or 570331905. Listed at 19 retailers as of October 26, 2026, with prices from $142 to $1,473, a $1,331 spread on the same certified stone. MOH London lists it at $1,473. 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
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle27.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG570331905
Dimensions8.10 × 4.63 × 3.06 mm
L/W Ratio1.75
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
8.10 mm4.63 mm1.00 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG570331905
Side View
Table 61.5%Crown 35.5°Girdle: MediumPavilion 27.4°Culet: NoneDepth 66.1%

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 2
Current: $1,473 SGD|Low: $137 SGD|High: $1,489 SGD|Avg: $432 SGD|+0.1%
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
November 2, 2026
Retailer 10$142 SGD
Retailer 5$160 SGD
Retailer 3$165 SGD
Retailer 4$188 SGD
Retailer 12$188 SGD
Retailer 8$326 SGD
Retailer 7$335 SGD
Retailer 13$349 SGD
Retailer 2$354 SGD
Retailer 6$495 SGD
Retailer 14$567 SGD
Retailer 9$632 SGD
Retailer 11$691 SGD
MOH London$1,473 SGD

44 data points across 14 retailers

19 retailers$142 SGD to $1,473 SGD

A
Cheapest Retailer
-
$142 SGD
$111 USD
A
Retailer 2
-
$160 SGD
$125 USD
View
Final sale: no returns
A
Retailer 3
-
$165 SGD
$129 USD
View
A
Retailer 4
-
$188 SGD
$147 USD
View
Retailer 5
-
$188 SGD
$147 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$213 SGD
HK$1,300 HKD
View
A
Retailer 7
-
$326 SGD
€243 EUR
View
A
Retailer 8
-
$335 SGD
£206 GBP
View
A
Retailer 9
-
$348 SGD
$272 USD
View
B+
Retailer 10
-
$349 SGD
$273 USD
View
A
Retailer 11
-
$354 SGD
£218 GBP
View
B+
Retailer 12
-
$495 SGD
$387 USD
View
B+
Retailer 13
-
$496 SGD
View
B+
Retailer 14
-
$567 SGD
$443 USD
View
B+
Retailer 15
-
$598 SGD
£368 GBP
View
B+
Retailer 16
-
$632 SGD
$494 USD
View
B
Retailer 17
-
$658 SGD
£405 GBP
View
B
Retailer 18
-
$691 SGD
$540 USD
View
Most Expensive
B
MOH London
LG570331905 · Oct 26
$1,473 SGD
£907 GBP
View
18 more retailers have this diamond
Prices start from $142 SGDSave up to $1,331 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.

A
1.00ct Radiant
$142 SGD