CaratHunter
Plans
Cushion|Lab Grown|IGI

4.07ct E SI1 Cushion Lab Grown Diamond

EX • E/SI1 • IGI LG823638918

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG823638918

Diamond specifications and retailer prices

From $648 SGD
$507 USD
As of October 29, 2026
Save $573 SGD (47%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,221 SGD at 77 Diamonds · As of October 31, 2026
View at 77 Diamonds

About this 4.07ct lab-grown cushion diamond

This 4.07ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG823638918 or 823638918. Listed at 2 retailers as of October 29, 2026, with prices from $648 to $1,221, a $573 spread on the same certified stone. 77 Diamonds lists it at $1,221. 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

4.07
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823638918
Dimensions9.27 × 9.23 × 6.18 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.27 mm9.23 mm4.07 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823638918
Side View
Table 62.0%Crown 33.6°Girdle: MED-THKPavilion 39.9°Culet: NoneDepth 67.0%

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 29
Current: $1,221 SGD|Low: $648 SGD|High: $1,801 SGD|Avg: $1,249 SGD|-6.6%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 31, 2026
Retailer 2$648 SGD
Retailer 3$940 SGD
Retailer 5$1,158 SGD
77 Diamonds$1,221 SGD
Retailer 4$1,801 SGD

38 data points across 5 retailers

2 retailers$648 SGD to $1,221 SGD

A
Cheapest Retailer
-
$648 SGD
$507 USD
Final sale: no returns
Most Expensive
A
77 Diamonds
CUSTVSCWZ6KZZX · Oct 31
$1,221 SGD
£752 GBP
View
1 more retailer has this diamond
Prices start from $648 SGDSave up to $573 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
4.07ct Cushion
$648 SGD