Marquise|Lab Grown|IGI

1.23ct E VS1 Marquise Lab Grown Diamond

E/VS1 • IGI LG768684611

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG768684611

Diamond specifications and retailer prices

From £191 GBP
$256 USD
As of October 30, 2026
Save £862 GBP (82%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: £1,843 GBP 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 LG768684611 or 768684611. Listed at 27 retailers as of October 29, 2026, with a 451% 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
Colour
VS1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.3°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768684611
Dimensions11.52 × 5.53 × 3.32 mm
L/W Ratio2.08
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.52 mm5.53 mm1.23 ctE / VS1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768684611
Side View
Table 60.0%Crown 32.3°Girdle: MED-STKPavilion 38.9°Culet: NoneDepth 60.0%

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: £1,843 GBP|Low: £184 GBP|High: £1,843 GBP|Avg: £644 GBP
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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 2, 2026
Retailer 5£184 GBP
Retailer 7£213 GBP
Retailer 4£237 GBP
Retailer 11£270 GBP
Retailer 8£318 GBP
Retailer 3£355 GBP
Retailer 2£451 GBP
Retailer 13£461 GBP
Retailer 19£478 GBP
Retailer 6£481 GBP
Retailer 15£494 GBP
Retailer 18£603 GBP
Retailer 17£636 GBP
Retailer 20£728 GBP
Retailer 10£964 GBP
Retailer 14£993 GBP
Retailer 9£1,022 GBP
Retailer 12£1,024 GBP
Retailer 16£1,053 GBP
Do Amore Diamonds£1,843 GBP

44 data points across 20 retailers

27 retailers£191 GBP to £1,053 GBP

Retailer 1
-
£184 GBP
$246 USD
Price last confirmed 30 days ago
A
Retailer 2
-
£191 GBP
$256 USD
View
A
Retailer 3
-
£213 GBP
$286 USD
View
Final sale: no returns
Retailer 4
-
£222 GBP
$297 USD
View
Price last confirmed 34 days ago
Retailer 5
-
£237 GBP
$317 USD
View
Price last confirmed 29 days ago
Retailer 6
-
£237 GBP
$317 USD
View
Price last confirmed 7 days ago
A
Retailer 7
-
£237 GBP
$317 USD
View
A
Retailer 8
-
£270 GBP
$362 USD
View
B+
Retailer 9
-
£318 GBP
$426 USD
View
A
Retailer 10
-
£355 GBP
$475 USD
View
B+
Retailer 11
-
£451 GBP
ZAR 9,755 ZAR
View
B+
Retailer 12
-
£461 GBP
View
B+
Retailer 13
-
£478 GBP
$640 USD
View
B+
Retailer 14
-
£481 GBP
$644 USD
View
B
Retailer 15
-
£494 GBP
A$1,018 AUD
View
B
Retailer 16
-
£603 GBP
A$1,243 AUD
View
B
Retailer 17
-
£636 GBP
A$1,311 AUD
View
B
Retailer 18
-
£728 GBP
$975 USD
View
Retailer 19
-
£840 GBP
$1,126 USD
View
Price last confirmed 32 days ago
B
Retailer 20
-
£840 GBP
$1,126 USD
View
B
Retailer 21
-
£964 GBP
$1,292 USD
View
B
Retailer 22
-
£993 GBP
$1,330 USD
View
B
Retailer 23
-
£1,022 GBP
$1,370 USD
View
B
Retailer 24
-
£1,024 GBP
View
B
Retailer 25
-
£1,053 GBP
View
Retailer 26
-
£1,694 GBP
$2,270 USD
View
Price under review
Most Expensive
Do Amore Diamonds
23-768684611 · Oct 31
£1,843 GBP
$2,470 USD
View
Price under review
26 more retailers have this diamond
Prices start from £191 GBPSave up to £862 GBP

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
£191 GBP