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Marquise|Lab Grown|IGI

1.28ct D VS2 Marquise Lab Grown Diamond

D/VS2 • IGI LG782643064

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG782643064

Diamond specifications and retailer prices

From £183 GBP
As of November 4, 2026
Save £92 GBP (34%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £514 GBP at Rare Carat · As of September 9, 2026
View at Rare Carat

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 VS2 clarity (very-slightly-included) and certified by IGI LG782643064 or 782643064. Listed at 4 retailers as of November 4, 2026, with a 50% 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

1.28
Carat
D
Colour
VS2
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG782643064
Dimensions11.29 × 5.62 × 3.58 mm
L/W Ratio2.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.29 mm5.62 mm1.28 ctD / VS2
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG782643064
Side View
Table 61.0%Crown 36.3°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.7%

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 4
Current: £514 GBP|Low: £183 GBP|High: £1,456 GBP|Avg: £613 GBP
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 21, 2026
Retailer 2£183 GBP
Retailer 5£275 GBP
Retailer 11£288 GBP
Retailer 7£362 GBP
Retailer 6£371 GBP
Retailer 4£412 GBP
Rare Carat£514 GBP
Retailer 12£563 GBP
Retailer 10£734 GBP
Retailer 8£796 GBP
Retailer 3£1,070 GBP
Retailer 9£1,456 GBP

5 data points across 12 retailers

4 retailers£183 GBP to £275 GBP

A
Cheapest Retailer
-
£183 GBP
Final sale: no returns
B+
Retailer 2
-
£275 GBP
View
Retailer 3
-
£412 GBP
View
Price last confirmed 127 days ago
Most Expensive
Rare Carat
NM-13-14-B-1_l_781652219 · Sep 9
£514 GBP
$692 USD
View
Price last confirmed 57 days ago
3 more retailers have this diamond
Prices start from £183 GBPSave up to £92 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
£183 GBP