Cushion|Lab Grown|IGI

1.23ct E VS1 Cushion Lab Grown Diamond

VG • E/VS1 • IGI LG646487003

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG646487003

Diamond specifications and retailer prices

From $206 USD
As of November 1, 2026
Save $939 USD (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,145 USD at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 1.23ct lab-grown cushion diamond

This 1.23ct lab-grown cushion sits in the classic one-carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG646487003 or 646487003. Listed at 15 retailers as of November 1, 2026, with prices from $206 to $1,145, a $939 spread on the same certified stone. Reve Diamonds lists it at $1,145. 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

1.23
Carat
E
Color
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG646487003
Dimensions6.25 × 6.19 × 4.05 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.25 mm6.19 mm1.23 ctE / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG646487003
Side View
Table 61.0%Crown 36.2°Girdle: MED-STKPavilion 38.5°Culet: NoneDepth 65.4%

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: Nov 1
Current: $395 USD|Low: $206 USD|High: $1,162 USD|Avg: $582 USD|+1.4%
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
Retailer 14
Reve Diamonds
November 1, 2026
Retailer 3$206 USD
Retailer 13$229 USD
Retailer 12$288 USD
Retailer 1$395 USD
Retailer 6$404 USD
Retailer 8$410 USD
Retailer 7$414 USD
Retailer 4$445 USD
Retailer 2$552 USD
Retailer 11$559 USD
Retailer 14$645 USD
Retailer 5$790 USD
Retailer 9$970 USD
Retailer 10$1,077 USD
Reve Diamonds$1,145 USD

23 data points across 15 retailers

15 retailers$206 USD to $1,145 USD

A
Cheapest Retailer
-
$206 USD
Final sale: no returns
Retailer 2
-
$229 USD
View
Price last confirmed 7 days ago
Retailer 3
-
$288 USD
£227 GBP
View
Price last confirmed 15 days ago
A
Retailer 4
-
$395 USD
ZAR 6,388 ZAR
View
A
Retailer 5
-
$404 USD
View
A
Retailer 6
-
$410 USD
€390 EUR
View
A
Retailer 7
-
$414 USD
£326 GBP
View
A
Retailer 8
-
$445 USD
View
B+
Retailer 9
-
$552 USD
View
B+
Retailer 10
-
$559 USD
A$860 AUD
View
B+
Retailer 11
-
$645 USD
View
B+
Retailer 12
-
$790 USD
View
B
Retailer 13
-
$970 USD
View
B
Retailer 14
-
$1,077 USD
£848 GBP
View
Most Expensive
B
Reve Diamonds
E93CD914E · Nov 1
$1,145 USD
View
14 more retailers have this diamond
Prices start from $206 USDSave up to $939 USD

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
1.23ct Cushion
$206 USD