CaratHunter
Plans
Marquise|Lab Grown|IGI

1.23ct D VS1 Marquise Lab Grown Diamond

ID • D/VS1 • IGI LG814623890

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG814623890

Diamond specifications and retailer prices

From $404 USD
As of November 1, 2026
Save $1,650 USD (80%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,290 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 LG814623890 or 814623890. Listed at 15 retailers as of November 1, 2026, with a 408% 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
D
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG814623890
Dimensions11.24 × 5.61 × 3.43 mm
L/W Ratio2.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.24 mm5.61 mm1.23 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG814623890
Side View
Table 58.0%Crown 32.8°Girdle: THN-MEDPavilion 40.2°Culet: NoneDepth 61.1%

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: $2,290 USD|Low: $404 USD|High: $2,290 USD|Avg: $1,181 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
Retailer 14
November 3, 2026
Retailer 4$404 USD
Retailer 3$456 USD
Retailer 11$655 USD
Retailer 10$655 USD
Retailer 5$719 USD
Retailer 2$925 USD
Retailer 12$958 USD
Retailer 8$964 USD
Retailer 14$1,319 USD
Retailer 9$1,362 USD
Retailer 13$1,798 USD
Retailer 6$1,946 USD
Retailer 7$2,054 USD
Do Amore Diamonds$2,290 USD

42 data points across 14 retailers

15 retailers$404 USD to $2,054 USD

A
Cheapest Retailer
-
$404 USD
A
Retailer 2
-
$456 USD
View
Final sale: no returns
B+
Retailer 3
-
$655 USD
View
B+
Retailer 4
-
$655 USD
€624 EUR
View
B+
Retailer 5
-
$719 USD
View
B
Retailer 6
-
$925 USD
£729 GBP
View
Retailer 7
-
$958 USD
A$1,474 AUD
View
Price last confirmed 25 days ago
B
Retailer 8
-
$964 USD
ZAR 15,579 ZAR
View
B
Retailer 9
-
$1,319 USD
View
B
Retailer 10
-
$1,362 USD
A$2,096 AUD
View
B
Retailer 11
-
$1,798 USD
View
B
Retailer 12
-
$1,850 USD
View
B
Retailer 13
-
$1,946 USD
View
B
Retailer 14
-
$2,054 USD
£1,617 GBP
View
Most Expensive
Do Amore Diamonds
31-LG7545229 · Nov 2
$2,290 USD
View
Price under review
14 more retailers have this diamond
Prices start from $404 USDSave up to $1,650 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
$404 USD