Cushion|Lab Grown|IGI

1.23ct D VVS1 Cushion Lab Grown Diamond

VG • D/VVS1 • IGI LG840629726

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG840629726

Diamond specifications and retailer prices

From $231 USD
As of October 30, 2026
Save $1,494 USD (87%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,725 USD at Helzberg Diamonds · As of October 31, 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 LG840629726 or 840629726. Listed at 12 retailers as of October 30, 2026, with prices from $231 to $1,725, a $1,494 spread on the same certified stone. Helzberg Diamonds lists it at $1,725. 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 angle32.1°
Pavilion angle36°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840629726
Dimensions7.87 × 5.31 × 3.65 mm
L/W Ratio1.48
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
7.87 mm5.31 mm1.23 ctD / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840629726
Side View
Table 64.0%Crown 32.1°Girdle: STK-THKPavilion 36°Culet: NoneDepth 68.7%

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: Oct 30
Current: $1,725 USD|Low: $231 USD|High: $1,725 USD|Avg: $684 USD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 9$231 USD
Retailer 5$293 USD
Retailer 2$435 USD
Retailer 7$442 USD
Retailer 4$467 USD
Retailer 8$598 USD
Retailer 11$625 USD
Retailer 10$837 USD
Retailer 3$876 USD
Retailer 6$965 USD
Helzberg Diamonds$1,725 USD

6 data points across 11 retailers

12 retailers$231 USD to $1,725 USD

A
Cheapest Retailer
-
$231 USD
Final sale: no returns
A
Retailer 2
-
$293 USD
£230 GBP
View
A
Retailer 3
-
$435 USD
€414 EUR
View
A
Retailer 4
-
$442 USD
View
A
Retailer 5
-
$467 USD
£368 GBP
View
B+
Retailer 6
-
$598 USD
View
B+
Retailer 7
-
$625 USD
A$962 AUD
View
B
Retailer 8
-
$837 USD
SGD 1,131 SGD
View
B
Retailer 9
-
$876 USD
View
B
Retailer 10
-
$965 USD
View
B
Retailer 11
-
$1,260 USD
View
Most Expensive
B
Helzberg Diamonds
ZXZOKGMIPNIM · Oct 31
$1,725 USD
View
11 more retailers have this diamond
Prices start from $231 USDSave up to $1,494 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
$231 USD