Marquise|Lab Grown|IGI

1.23ct E VS1 Marquise Lab Grown Diamond

E/VS1 • IGI LG761521170

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG761521170

Diamond specifications and retailer prices

From $256 USD
As of November 2, 2026
Save $1,147 USD (82%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $2,470 USD at Do Amore Diamonds · As of October 31, 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 E colour (colourless) and VS1 clarity (very-slightly-included) and certified by IGI LG761521170 or 761521170. Listed at 27 retailers as of November 1, 2026, with a 448% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.23
Carat
E
Color
VS1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.6°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG761521170
Dimensions11.23 × 5.45 × 3.41 mm
L/W Ratio2.06
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.23 mm5.45 mm1.23 ctE / VS1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG761521170
Side View
Table 58.0%Crown 39.6°Girdle: MED-STKPavilion 38.5°Culet: NoneDepth 62.6%

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: Nov 2
Current: $2,470 USD|Low: $246 USD|High: $2,470 USD|Avg: $863 USD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
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Retailer 7
Retailer 8
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Retailer 11
Retailer 12
Retailer 13
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Retailer 15
Retailer 16
Retailer 17
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Retailer 19
Retailer 20
November 2, 2026
Retailer 5$246 USD
Retailer 7$286 USD
Retailer 4$317 USD
Retailer 11$362 USD
Retailer 8$426 USD
Retailer 3$475 USD
Retailer 13$604 USD
Retailer 2$613 USD
Retailer 19$640 USD
Retailer 6$644 USD
Retailer 16$662 USD
Retailer 18$808 USD
Retailer 17$852 USD
Retailer 20$975 USD
Retailer 10$1,292 USD
Retailer 15$1,330 USD
Retailer 9$1,370 USD
Retailer 12$1,372 USD
Retailer 14$1,403 USD
Do Amore Diamonds$2,470 USD

43 data points across 20 retailers

27 retailers$256 USD to $1,403 USD

Retailer 1
-
$246 USD
Price last confirmed 30 days ago
A
Retailer 2
-
$256 USD
View
A
Retailer 3
-
$286 USD
View
Final sale: no returns
Retailer 4
-
$297 USD
View
Price last confirmed 34 days ago
Retailer 5
-
$317 USD
View
Price last confirmed 29 days ago
Retailer 6
-
$317 USD
View
Price last confirmed 7 days ago
A
Retailer 7
-
$317 USD
View
B+
Retailer 8
-
$362 USD
View
B+
Retailer 9
-
$426 USD
View
A
Retailer 10
-
$475 USD
View
B+
Retailer 11
-
$604 USD
ZAR 9,755 ZAR
View
B+
Retailer 12
-
$613 USD
£483 GBP
View
B+
Retailer 13
-
$640 USD
View
B
Retailer 14
-
$644 USD
View
B
Retailer 15
-
$662 USD
A$1,018 AUD
View
B
Retailer 16
-
$808 USD
A$1,243 AUD
View
B
Retailer 17
-
$852 USD
A$1,311 AUD
View
B
Retailer 18
-
$975 USD
View
Retailer 19
-
$1,126 USD
View
Price last confirmed 32 days ago
B
Retailer 20
-
$1,126 USD
View
B
Retailer 21
-
$1,292 USD
View
B
Retailer 22
-
$1,330 USD
View
B
Retailer 23
-
$1,370 USD
View
B
Retailer 24
-
$1,372 USD
£1,080 GBP
View
B
Retailer 25
-
$1,403 USD
£1,105 GBP
View
Retailer 26
-
$2,270 USD
View
Price under review
Most Expensive
Do Amore Diamonds
23-761521170 · Oct 31
$2,470 USD
View
Price under review
26 more retailers have this diamond
Prices start from $256 USDSave up to $1,147 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
$256 USD