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Marquise|Lab Grown|IGI

1.28ct D VS1 Marquise Lab Grown Diamond

ID • D/VS1 • IGI LG814623841

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG814623841

Diamond specifications and retailer prices

From £217 GBP
As of November 4, 2026
Save £848 GBP (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,726 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 1.28ct lab-grown marquise diamond

This 1.28ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG814623841 or 814623841. Listed at 13 retailers as of November 3, 2026, with a 391% 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

1.28
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle41.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG814623841
Dimensions11.49 × 5.60 × 3.56 mm
L/W Ratio2.05
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.49 mm5.60 mm1.28 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG814623841
Side View
Table 60.0%Crown 33.6°Girdle: MED-STKPavilion 41.7°Culet: NoneDepth 63.6%

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 4
Current: £1,726 GBP|Low: £217 GBP|High: £1,726 GBP|Avg: £662 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
November 4, 2026
Retailer 5£217 GBP
Retailer 3£305 GBP
Retailer 2£354 GBP
Retailer 7£359 GBP
Retailer 11£401 GBP
Retailer 6£465 GBP
Retailer 12£552 GBP
Retailer 8£652 GBP
Retailer 10£740 GBP
Retailer 4£977 GBP
Retailer 13£1,029 GBP
Retailer 9£1,065 GBP
Do Amore Diamonds£1,726 GBP

9 data points across 13 retailers

13 retailers£217 GBP to £1,065 GBP

A
Cheapest Retailer
-
£217 GBP
Final sale: no returns
A
Retailer 2
-
£305 GBP
View
A
Retailer 3
-
£354 GBP
View
A
Retailer 4
-
£359 GBP
View
B+
Retailer 5
-
£401 GBP
View
B+
Retailer 6
-
£465 GBP
View
Retailer 7
-
£552 GBP
View
Price last confirmed 7 days ago
B
Retailer 8
-
£652 GBP
View
B
Retailer 9
-
£740 GBP
View
B
Retailer 10
-
£977 GBP
View
B
Retailer 11
-
£1,029 GBP
View
B
Retailer 12
-
£1,065 GBP
View
Most Expensive
Do Amore Diamonds
27-E3E7073B1 · Nov 4
£1,726 GBP
$2,330 USD
View
Price under review
12 more retailers have this diamond
Prices start from £217 GBPSave up to £848 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
1.28ct Marquise
£217 GBP