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Cushion|Lab Grown|IGI

1.23ct D VVS1 Cushion Lab Grown Diamond

VG • D/VVS1 • IGI LG830620278

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG830620278

Diamond specifications and retailer prices

From €207 EUR
$231 USD
As of November 1, 2026
Save €1,337 EUR (87%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,544 EUR at Helzberg Diamonds · As of November 1, 2026
View at Helzberg 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 VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG830620278 or 830620278. Listed at 14 retailers as of November 1, 2026, with prices from €207 to €1,544, a €1,337 spread on the same certified stone. Helzberg Diamonds lists it at €1,544. 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
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37°
Pavilion angle36.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG830620278
Dimensions7.73 × 5.27 × 3.69 mm
L/W Ratio1.47
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.73 mm5.27 mm1.23 ctD / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG830620278
Side View
Table 59.0%Crown 37°Girdle: MED-THKPavilion 36.6°Culet: NoneDepth 70.0%

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 1
Current: €1,544 EUR|Low: €207 EUR|High: €1,544 EUR|Avg: €614 EUR
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 13€207 EUR
Retailer 2€261 EUR
Retailer 9€389 EUR
Retailer 7€395 EUR
Retailer 11€396 EUR
Retailer 6€422 EUR
Retailer 12€535 EUR
Retailer 4€560 EUR
Retailer 3€749 EUR
Retailer 5€784 EUR
Retailer 10€864 EUR
Retailer 8€917 EUR
Helzberg Diamonds€1,544 EUR

8 data points across 13 retailers

14 retailers€207 EUR to €1,544 EUR

A
Cheapest Retailer
-
€207 EUR
$231 USD
Final sale: no returns
A
Retailer 2
-
€261 EUR
£230 GBP
View
A
Retailer 3
-
€389 EUR
View
A
Retailer 4
-
€395 EUR
ZAR 7,134 ZAR
View
A
Retailer 5
-
€396 EUR
$442 USD
View
A
Retailer 6
-
€422 EUR
£371 GBP
View
B+
Retailer 7
-
€535 EUR
$598 USD
View
B+
Retailer 8
-
€560 EUR
A$962 AUD
View
B
Retailer 9
-
€749 EUR
SGD 1,131 SGD
View
B
Retailer 10
-
€784 EUR
$876 USD
View
B
Retailer 11
-
€864 EUR
$965 USD
View
B
Retailer 12
-
€917 EUR
£807 GBP
View
B
Retailer 13
-
€1,128 EUR
$1,260 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOJGMIGINO · Nov 1
€1,544 EUR
$1,725 USD
View
13 more retailers have this diamond
Prices start from €207 EURSave up to €1,337 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
€207 EUR