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Marquise|Lab Grown|IGI

1.23ct D VS1 Marquise Lab Grown Diamond

ID • D/VS1 • IGI LG814623842

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG814623842

Diamond specifications and retailer prices

From $283 USD
As of November 1, 2026
Save $1,967 USD (87%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,250 USD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 1.23ct lab-grown marquise diamond

This 1.23ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG814623842 or 814623842. Listed at 13 retailers as of November 1, 2026, with prices from $283 to $2,250, a $1,967 spread on the same certified stone. Do Amore Diamonds lists it at $2,250. 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
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG814623842
Dimensions11.16 × 5.66 × 3.48 mm
L/W Ratio1.97
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.16 mm5.66 mm1.23 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG814623842
Side View
Table 60.0%Crown 34.1°Girdle: THN-MEDPavilion 40.4°Culet: NoneDepth 61.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $2,250 USD|Low: $283 USD|High: $2,250 USD|Avg: $860 USD
Do Amore 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 3, 2026
Retailer 5$283 USD
Retailer 3$384 USD
Retailer 6$463 USD
Retailer 13$475 USD
Retailer 10$524 USD
Retailer 2$610 USD
Retailer 11$740 USD
Retailer 9$843 USD
Retailer 8$964 USD
Retailer 4$1,280 USD
Retailer 12$1,361 USD
Retailer 7$1,388 USD
Do Amore Diamonds$2,250 USD

8 data points across 13 retailers

13 retailers$283 USD to $2,250 USD

A
Cheapest Retailer
-
$283 USD
Final sale: no returns
A
Retailer 2
-
$384 USD
View
A
Retailer 3
-
$463 USD
£364 GBP
View
A
Retailer 4
-
$475 USD
View
A
Retailer 5
-
$524 USD
View
B+
Retailer 6
-
$610 USD
£481 GBP
View
B+
Retailer 7
-
$740 USD
View
B
Retailer 8
-
$843 USD
A$1,297 AUD
View
B
Retailer 9
-
$964 USD
View
B
Retailer 10
-
$1,280 USD
View
B
Retailer 11
-
$1,361 USD
View
B
Retailer 12
-
$1,388 USD
£1,093 GBP
View
Most Expensive
B
Do Amore Diamonds
27-7389A6E4E · Nov 2
$2,250 USD
View
12 more retailers have this diamond
Prices start from $283 USDSave up to $1,967 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 Marquise
$283 USD