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Marquise|Lab Grown|IGI

1.23ct E VS1 Marquise Lab Grown Diamond

EX • E/VS1 • IGI LG790620208

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG790620208

Diamond specifications and retailer prices

From $215 USD
As of October 30, 2026
Save $670 USD (76%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $885 USD at Frank Darling · As of October 29, 2026
View at Frank Darling

About this 1.23ct lab-grown marquise diamond

This 1.23ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG790620208 or 790620208. Listed at 6 retailers as of October 29, 2026, with prices from $215 to $885, a $670 spread on the same certified stone. Frank Darling lists it at $885. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
E
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790620208
Dimensions11.36 × 5.50 × 3.44 mm
L/W Ratio2.07
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.36 mm5.50 mm1.23 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790620208
Side View
Table 61.0%Crown 36.7°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.5%

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: Oct 30
Current: $885 USD|Low: $122 USD|High: $1,152 USD|Avg: $551 USD|+1.9%
Frank Darling
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
October 28, 2026
Retailer 12$122 USD
Retailer 2$215 USD
Retailer 8$332 USD
Retailer 3$386 USD
Retailer 10$433 USD
Retailer 5$446 USD
Retailer 11$467 USD
Retailer 9$504 USD
Retailer 7$615 USD
Retailer 4$685 USD
Retailer 6$729 USD
Retailer 13$800 USD
Frank Darling$885 USD
Retailer 14$1,152 USD

17 data points across 14 retailers

6 retailers$215 USD to $885 USD

A
Cheapest Retailer
-
$215 USD
Final sale: no returns
B+
Retailer 2
-
$332 USD
View
Retailer 3
-
$504 USD
View
Price last confirmed 10 days ago
B+
Retailer 4
-
$615 USD
View
Retailer 5
-
$729 USD
A$1,122 AUD
View
Price last confirmed 141 days ago
Most Expensive
B
Frank Darling
100757102493KD · Oct 29
$885 USD
View
5 more retailers have this diamond
Prices start from $215 USDSave up to $670 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
$215 USD