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Radiant|Lab Grown|IGI

1.00ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG490176326

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

Certificate IGI LG490176326

Diamond specifications and retailer prices

From $170 SGD
As of November 6, 2026
Save $1,470 SGD (90%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $1,640 SGD at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 1ct lab-grown radiant diamond

This 1ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG490176326 or 490176326. Listed at 20 retailers as of November 6, 2026, with prices from $170 to $1,640, a $1,470 spread on the same certified stone. Do Amore Diamonds lists it at $1,640. 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.1°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG490176326
Dimensions7.05 × 4.97 × 3.39 mm
L/W Ratio1.42
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.05 mm4.97 mm1.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG490176326
Side View
Table 63.0%Crown 40.1°Girdle: MED-STKPavilion 35.1°Culet: NoneDepth 68.2%

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 6
Current: $1,640 SGD|Low: $164 SGD|High: $1,640 SGD|Avg: $528 SGD
Do Amore Diamonds
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 6, 2026
Retailer 9$170 SGD
Retailer 7$191 SGD
Retailer 14$197 SGD
Retailer 15$211 SGD
Retailer 3$304 SGD
Retailer 5$331 SGD
Retailer 10$399 SGD
Retailer 2$411 SGD
Retailer 13$442 SGD
Retailer 12$506 SGD
Retailer 6$705 SGD
Retailer 4$718 SGD
Retailer 8$750 SGD
Retailer 11$1,087 SGD
Do Amore Diamonds$1,640 SGD

43 data points across 15 retailers

20 retailers$170 SGD to $1,640 SGD

A
Cheapest Retailer
-
$170 SGD
A
Retailer 2
-
$191 SGD
View
Final sale: no returns
A
Retailer 3
-
$197 SGD
View
A
Retailer 4
-
$211 SGD
View
A
Retailer 5
-
$281 SGD
View
B+
Retailer 6
-
$331 SGD
View
A
Retailer 7
-
$360 SGD
View
A
Retailer 8
-
$399 SGD
View
A
Retailer 9
-
$411 SGD
View
A
Retailer 10
-
$442 SGD
View
B+
Retailer 11
-
$506 SGD
View
B+
Retailer 12
-
$527 SGD
View
B
Retailer 13
-
$677 SGD
View
B+
Retailer 14
-
$705 SGD
View
B+
Retailer 15
-
$718 SGD
View
B+
Retailer 16
-
$750 SGD
View
B
Retailer 17
-
$887 SGD
View
B
Retailer 18
-
$973 SGD
View
B
Retailer 19
-
$1,087 SGD
View
Most Expensive
B
Do Amore Diamonds
27-4E1C3A675 · Nov 6
$1,640 SGD
$1,280 USD
View
19 more retailers have this diamond
Prices start from $170 SGDSave up to $1,470 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
$170 SGD