Marquise|Lab Grown|IGI

1.21ct D VS1 Marquise Lab Grown Diamond

VG • D/VS1 • IGI LG833626544

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG833626544

Diamond specifications and retailer prices

From £194 GBP
As of November 4, 2026
Save £870 GBP (82%) vs most expensive(unlock to see where)
23 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 1.21ct lab-grown marquise diamond

This 1.21ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG833626544 or 833626544. Listed at 23 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

1.21
Carat
D
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG833626544
Dimensions11.75 × 5.31 × 3.28 mm
L/W Ratio2.21
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.75 mm5.31 mm1.21 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG833626544
Side View
Table 57.0%Crown 35.7°Girdle: MED-THKPavilion 37.9°Culet: NoneDepth 61.8%

Caratlytics Score

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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: £187 GBP|High: £1,874 GBP|Avg: £650 GBP|-7.9%
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
November 4, 2026
Retailer 4£187 GBP
Retailer 3£241 GBP
Retailer 5£279 GBP
Retailer 8£321 GBP
Retailer 2£354 GBP
Retailer 16£359 GBP
Retailer 11£458 GBP
Retailer 9£464 GBP
Retailer 14£552 GBP
Retailer 13£641 GBP
Retailer 10£652 GBP
Retailer 15£739 GBP
Retailer 7£976 GBP
Retailer 6£1,028 GBP
Retailer 12£1,064 GBP
Do Amore Diamonds£1,726 GBP

43 data points across 16 retailers

23 retailers£194 GBP to £1,064 GBP

Retailer 1
-
£187 GBP
Price last confirmed 33 days ago
A
Retailer 2
-
£194 GBP
View
A
Retailer 3
-
£217 GBP
View
Final sale: no returns
Retailer 4
-
£225 GBP
View
Price last confirmed 36 days ago
Retailer 5
-
£241 GBP
View
Price last confirmed 32 days ago
Retailer 6
-
£241 GBP
View
Price last confirmed 10 days ago
A
Retailer 7
-
£241 GBP
View
A
Retailer 8
-
£279 GBP
View
A
Retailer 9
-
£321 GBP
View
A
Retailer 10
-
£354 GBP
View
B+
Retailer 11
-
£359 GBP
View
B+
Retailer 12
-
£458 GBP
View
B+
Retailer 13
-
£464 GBP
View
Retailer 14
-
£552 GBP
View
Price last confirmed 7 days ago
Retailer 15
-
£641 GBP
View
Price last confirmed 10 days ago
B
Retailer 16
-
£652 GBP
View
B
Retailer 17
-
£739 GBP
View
Retailer 18
-
£854 GBP
View
Price last confirmed 35 days ago
B
Retailer 19
-
£854 GBP
View
B
Retailer 20
-
£976 GBP
View
B
Retailer 21
-
£1,028 GBP
View
B
Retailer 22
-
£1,064 GBP
View
Most Expensive
Do Amore Diamonds
27-3086F48E8 · Nov 4
£1,726 GBP
$2,330 USD
View
Price under review
22 more retailers have this diamond
Prices start from £194 GBPSave up to £870 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
1.21ct Marquise
£194 GBP