CaratHunter
Plans
Cushion|Lab Grown|IGI

1.23ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG763666423

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG763666423

Diamond specifications and retailer prices

From $687 USD
As of November 1, 2026
Save $1,362 USD (66%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,824 USD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 1.23ct lab-grown cushion diamond

This 1.23ct lab-grown cushion sits in the classic one-carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG763666423 or 763666423. Listed at 14 retailers as of October 31, 2026, with a 198% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.4°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG763666423
Dimensions7.73 × 5.44 × 3.46 mm
L/W Ratio1.42
Girdle conditionFaceted
Culet sizeLong Faceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.73 mm5.44 mm1.23 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG763666423
Side View
Table 55.0%Crown 38.4°Girdle: STK-THKPavilion 39.3°Culet: LONDepth 63.6%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $1,444 USD|Low: $687 USD|High: $5,450 USD|Avg: $1,882 USD|-0.4%
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
Taylor and Hart
November 2, 2026
Retailer 4$687 USD
Retailer 10$761 USD
Retailer 3$890 USD
Retailer 5$1,006 USD
Retailer 6$1,029 USD
Retailer 12$1,033 USD
Retailer 7$1,258 USD
Retailer 1$1,444 USD
Retailer 8$2,049 USD
Retailer 11$2,438 USD
Retailer 2$2,496 USD
Taylor and Hart$2,824 USD
Retailer 9$3,330 USD
Retailer 13$5,450 USD

33 data points across 14 retailers

14 retailers$687 USD to $2,049 USD

B+
Cheapest Retailer
-
$687 USD
Final sale: no returns
Retailer 2
-
$761 USD
View
Price last confirmed 16 days ago
B
Retailer 3
-
$890 USD
View
B
Retailer 4
-
$1,006 USD
View
B
Retailer 5
-
$1,029 USD
£810 GBP
View
B
Retailer 6
-
$1,033 USD
View
B
Retailer 7
-
$1,258 USD
£991 GBP
View
B
Retailer 8
-
$1,444 USD
ZAR 23,335 ZAR
View
B
Retailer 9
-
$2,049 USD
A$3,152 AUD
View
Retailer 10
-
$2,438 USD
£1,920 GBP
View
Price under review
Retailer 11
-
$2,496 USD
View
Price under review
Most Expensive
Taylor and Hart
AF9W3YP · Oct 31
$2,824 USD
View
Price under review
11 more retailers have this diamond
Prices start from $687 USDSave up to $1,362 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.

B+
1.23ct Cushion
$687 USD