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Cushion|Lab Grown|IGI

1.23ct D VS1 Cushion Lab Grown Diamond

GD • D/VS1 • IGI LG634435036

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG634435036

Diamond specifications and retailer prices

From €222 EUR
$248 USD
As of November 1, 2026
Save €910 EUR (80%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €1,132 EUR 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 D colour (colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG634435036 or 634435036. Listed at 15 retailers as of November 1, 2026, with prices from €222 to €1,132, a €910 spread on the same certified stone. Reve Diamonds lists it at €1,132. 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
D
Color
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle39°
OriginLab Grown
Grading LabIGI
CertificateIGI LG634435036
Dimensions6.20 × 6.09 × 4.12 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.20 mm6.09 mm1.23 ctD / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG634435036
Side View
Table 61.0%Crown 36.3°Girdle: MED-THKPavilion 39°Culet: NoneDepth 67.7%

Caratlytics Score

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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 1
Current: €426 EUR|Low: €201 EUR|High: €1,173 EUR|Avg: €606 EUR|+13.8%
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 5€222 EUR
Retailer 13€333 EUR
Retailer 8€382 EUR
Retailer 6€422 EUR
Retailer 1€426 EUR
Retailer 3€435 EUR
Retailer 7€459 EUR
Retailer 2€531 EUR
Retailer 12€602 EUR
Retailer 11€649 EUR
Retailer 14€678 EUR
Retailer 4€840 EUR
Retailer 9€976 EUR
Retailer 10€995 EUR
Reve Diamonds€1,132 EUR

37 data points across 15 retailers

15 retailers€222 EUR to €1,132 EUR

A
Cheapest Retailer
-
€222 EUR
$248 USD
Final sale: no returns
Retailer 2
-
€333 EUR
£293 GBP
View
Price last confirmed 17 days ago
A
Retailer 3
-
€382 EUR
View
B+
Retailer 4
-
€422 EUR
$471 USD
View
B+
Retailer 5
-
€426 EUR
ZAR 7,690 ZAR
View
B+
Retailer 6
-
€435 EUR
$486 USD
View
B+
Retailer 7
-
€459 EUR
£404 GBP
View
B+
Retailer 8
-
€531 EUR
$593 USD
View
B
Retailer 9
-
€602 EUR
A$1,035 AUD
View
B
Retailer 10
-
€649 EUR
$725 USD
View
B
Retailer 11
-
€678 EUR
$758 USD
View
B
Retailer 12
-
€840 EUR
$939 USD
View
B
Retailer 13
-
€976 EUR
$1,090 USD
View
B
Retailer 14
-
€995 EUR
£875 GBP
View
Most Expensive
C
Reve Diamonds
0BB292569 · Nov 1
€1,132 EUR
$1,265 USD
View
14 more retailers have this diamond
Prices start from €222 EURSave up to €910 EUR

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
€222 EUR