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Marquise|Lab Grown|IGI

1.28ct D VS1 Marquise Lab Grown Diamond

ID • D/VS1 • IGI LG828684821

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG828684821

Diamond specifications and retailer prices

From £194 GBP
As of November 4, 2026
Save £871 GBP (82%) vs most expensive(unlock to see where)
19 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 LG828684821 or 828684821. Listed at 19 retailers as of November 3, 2026, with a 449% 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 angle35.6°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828684821
Dimensions10.81 × 5.79 × 3.67 mm
L/W Ratio1.87
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.81 mm5.79 mm1.28 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828684821
Side View
Table 59.0%Crown 35.6°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 63.4%

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: £1,726 GBP|Low: £194 GBP|High: £1,726 GBP|Avg: £621 GBP
Do Amore Diamonds
Retailer 2
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Retailer 21
November 4, 2026
Retailer 4£194 GBP
Retailer 11£217 GBP
Retailer 20£225 GBP
Retailer 3£241 GBP
Retailer 7£241 GBP
Retailer 10£305 GBP
Retailer 18£357 GBP
Retailer 16£359 GBP
Retailer 5£401 GBP
Retailer 2£465 GBP
Retailer 8£484 GBP
Retailer 17£552 GBP
Retailer 13£652 GBP
Retailer 19£740 GBP
Retailer 9£855 GBP
Retailer 21£931 GBP
Retailer 12£977 GBP
Retailer 6£1,029 GBP
Retailer 14£1,044 GBP
Retailer 15£1,065 GBP
Do Amore Diamonds£1,726 GBP

25 data points across 21 retailers

19 retailers£194 GBP to £1,065 GBP

A
Cheapest Retailer
-
£194 GBP
A
Retailer 2
-
£217 GBP
View
Final sale: no returns
A
Retailer 3
-
£225 GBP
View
Retailer 4
-
£241 GBP
View
Price last confirmed 10 days ago
A
Retailer 5
-
£241 GBP
View
A
Retailer 6
-
£305 GBP
View
A
Retailer 7
-
£359 GBP
View
A
Retailer 8
-
£401 GBP
View
B+
Retailer 9
-
£465 GBP
View
B+
Retailer 10
-
£484 GBP
View
Retailer 11
-
£552 GBP
View
Price last confirmed 7 days ago
B+
Retailer 12
-
£652 GBP
View
B
Retailer 13
-
£740 GBP
View
B
Retailer 14
-
£855 GBP
View
B
Retailer 15
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£931 GBP
View
B
Retailer 16
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£977 GBP
View
B
Retailer 17
-
£1,029 GBP
View
B
Retailer 18
-
£1,065 GBP
View
Most Expensive
Do Amore Diamonds
27-DA1C3A00D · Nov 4
£1,726 GBP
$2,330 USD
View
Price under review
18 more retailers have this diamond
Prices start from £194 GBPSave up to £871 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
£194 GBP