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Cushion|Lab Grown|IGI

1.00ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG830650343

Shape and cutting style on the report: Cushion antique cut

Certificate IGI LG830650343

Diamond specifications and retailer prices

From $236 SGD
As of November 6, 2026
Save $1,230 SGD (84%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,466 SGD at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1ct lab-grown cushion diamond

This 1ct lab-grown cushion 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 LG830650343 or 830650343. Listed at 16 retailers as of November 6, 2026, with prices from $236 to $1,466, a $1,230 spread on the same certified stone. Reve Diamonds lists it at $1,466. 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 angle37.9°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830650343
Dimensions7.52 × 5.25 × 3.21 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.52 mm5.25 mm1.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830650343
Side View
Table 62.0%Crown 37.9°Girdle: MED-STKPavilion 40°Culet: LargeDepth 61.1%

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 6
Current: $481 SGD|Low: $227 SGD|High: $1,466 SGD|Avg: $645 SGD|+1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Reve Diamonds
November 6, 2026
Retailer 9$236 SGD
Retailer 5$264 SGD
Retailer 4$274 SGD
Retailer 2$293 SGD
Retailer 11$293 SGD
Retailer 1$481 SGD
Retailer 3$515 SGD
Retailer 6$523 SGD
Retailer 13$647 SGD
Retailer 10$942 SGD
Retailer 8$995 SGD
Retailer 12$1,010 SGD
Retailer 7$1,371 SGD
Reve Diamonds$1,466 SGD

44 data points across 14 retailers

16 retailers$236 SGD to $1,466 SGD

A
Cheapest Retailer
-
$236 SGD
A
Retailer 2
-
$264 SGD
View
Final sale: no returns
A
Retailer 3
-
$274 SGD
View
A
Retailer 4
-
$293 SGD
View
Retailer 5
-
$293 SGD
View
Price last confirmed 13 days ago
A
Retailer 6
-
$384 SGD
View
A
Retailer 7
-
$481 SGD
View
B+
Retailer 8
-
$515 SGD
View
B+
Retailer 9
-
$523 SGD
View
B+
Retailer 10
-
$647 SGD
View
B
Retailer 11
-
$795 SGD
View
B
Retailer 12
-
$942 SGD
View
B
Retailer 13
-
$995 SGD
View
B
Retailer 14
-
$1,010 SGD
View
Retailer 15
-
$1,371 SGD
View
Price last confirmed 12 days ago
Most Expensive
B
Reve Diamonds
0D8A5DAB5 · Nov 6
$1,466 SGD
$1,144 USD
View
15 more retailers have this diamond
Prices start from $236 SGDSave up to $1,230 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 Cushion
$236 SGD