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Cushion|Lab Grown|IGI

1.23ct E VS1 Cushion Lab Grown Diamond

EX • E/VS1 • IGI LG780686324

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

Certificate IGI LG780686324

Diamond specifications and retailer prices

From $218 USD
As of October 30, 2026
Save $960 USD (81%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,178 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 top-tier cut grade and certified by IGI LG780686324 or 780686324. Listed at 16 retailers as of October 30, 2026, with prices from $218 to $1,178, a $960 spread on the same certified stone. Reve Diamonds lists it at $1,178. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
E
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle32.7°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780686324
Dimensions6.43 × 6.28 × 3.79 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.43 mm6.28 mm1.23 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG780686324
Side View
Table 59.0%Crown 32.7°Girdle: THN-MEDPavilion 37.2°Culet: NoneDepth 60.4%

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: Oct 30
Current: $438 USD|Low: $218 USD|High: $1,146 USD|Avg: $557 USD|+3.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 9$218 USD
Retailer 10$242 USD
Retailer 2$328 USD
Retailer 4$407 USD
Retailer 7$416 USD
Retailer 1$438 USD
Retailer 11$488 USD
Retailer 5$583 USD
Retailer 6$690 USD
Retailer 3$945 USD
Retailer 8$1,133 USD

45 data points across 11 retailers

16 retailers$218 USD to $1,178 USD

A
Cheapest Retailer
-
$218 USD
Final sale: no returns
Retailer 2
-
$242 USD
View
Price last confirmed 7 days ago
B+
Retailer 3
-
$328 USD
View
A
Retailer 4
-
$407 USD
€388 EUR
View
A
Retailer 5
-
$416 USD
ZAR 6,713 ZAR
View
A
Retailer 6
-
$438 USD
£345 GBP
View
A
Retailer 7
-
$448 USD
View
A
Retailer 8
-
$488 USD
View
B+
Retailer 9
-
$583 USD
View
Retailer 10
-
$679 USD
View
Price last confirmed 111 days ago
B+
Retailer 11
-
$690 USD
View
B+
Retailer 12
-
$790 USD
SGD 1,068 SGD
View
B
Retailer 13
-
$832 USD
View
B
Retailer 14
-
$945 USD
£744 GBP
View
Retailer 15
-
$1,133 USD
£892 GBP
View
Price last confirmed 7 days ago
Most Expensive
B
Reve Diamonds
46D48697E · Nov 1
$1,178 USD
View
15 more retailers have this diamond
Prices start from $218 USDSave up to $960 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
$218 USD