Cushion|Lab Grown|IGI

1.23ct D VVS1 Cushion Lab Grown Diamond

EX • D/VVS1 • IGI LG819623711

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG819623711

Diamond specifications and retailer prices

From $342 USD
As of October 30, 2026
Save $688 USD (67%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,030 USD at MOH London · As of October 29, 2026
View at MOH London

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 top-tier cut grade and certified by IGI LG819623711 or 819623711. Listed at 8 retailers as of October 29, 2026, with prices from $342 to $1,030, a $688 spread on the same certified stone. MOH London lists it at $1,030. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
D
Color
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.3°
Pavilion angle34.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG819623711
Dimensions7.26 × 5.46 × 3.74 mm
L/W Ratio1.33
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
7.26 mm5.46 mm1.23 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG819623711
Side View
Table 60.0%Crown 40.3°Girdle: STK-THKPavilion 34.3°Culet: NoneDepth 68.5%

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: $1,030 USD|Low: $142 USD|High: $1,038 USD|Avg: $546 USD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 9$142 USD
Retailer 6$342 USD
Retailer 4$432 USD
Retailer 2$467 USD
Retailer 5$500 USD
Retailer 7$598 USD
Retailer 3$615 USD
Retailer 8$875 USD
MOH London$1,030 USD

42 data points across 9 retailers

8 retailers$342 USD to $1,030 USD

B+
Cheapest Retailer
-
$342 USD
Retailer 2
-
$432 USD
ZAR 6,985 ZAR
View
Price last confirmed 8 days ago
A
Retailer 3
-
$467 USD
£368 GBP
View
A
Retailer 4
-
$500 USD
View
B+
Retailer 5
-
$598 USD
View
B+
Retailer 6
-
$615 USD
View
B
Retailer 7
-
$875 USD
View
Most Expensive
B
MOH London
LG819623711 · Oct 29
$1,030 USD
£811 GBP
View
7 more retailers have this diamond
Prices start from $342 USDSave up to $688 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
$342 USD