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Marquise|Lab Grown|IGI

1.22ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG754563664

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG754563664

Diamond specifications and retailer prices

From £229 GBP
As of November 4, 2026
Save £2,430 GBP (91%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £2,659 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 1.22ct lab-grown marquise diamond

This 1.22ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754563664 or 754563664. Listed at 25 retailers as of November 4, 2026, with prices from £229 to £2,659, a £2,430 spread on the same certified stone. Do Amore Diamonds lists it at £2,659. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.22
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754563664
Dimensions10.83 × 5.57 × 3.51 mm
L/W Ratio1.94
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
10.83 mm5.57 mm1.22 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754563664
Side View
Table 60.0%Crown 36.6°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 63.0%

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: £2,659 GBP|Low: £229 GBP|High: £2,763 GBP|Avg: £878 GBP|-3.8%
Do Amore Diamonds
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November 5, 2026
Retailer 25£229 GBP
Retailer 8£266 GBP
Retailer 2£284 GBP
Retailer 22£322 GBP
Retailer 16£369 GBP
Retailer 20£374 GBP
Retailer 21£417 GBP
Retailer 5£444 GBP
Retailer 18£476 GBP
Retailer 17£542 GBP
Retailer 13£557 GBP
Retailer 14£632 GBP
Retailer 11£707 GBP
Retailer 9£716 GBP
Retailer 24£771 GBP
Retailer 15£779 GBP
Retailer 4£873 GBP
Retailer 3£1,009 GBP
Retailer 10£1,127 GBP
Retailer 6£1,139 GBP
Retailer 7£1,206 GBP
Retailer 19£1,253 GBP
Retailer 12£1,345 GBP
Retailer 23£1,363 GBP
Do Amore Diamonds£2,659 GBP

27 data points across 25 retailers

25 retailers£229 GBP to £2,659 GBP

A
Cheapest Retailer
-
£229 GBP
A
Retailer 2
-
£266 GBP
View
A
Retailer 3
-
£284 GBP
View
A
Retailer 4
-
£322 GBP
View
A
Retailer 5
-
£369 GBP
View
Final sale: no returns
A
Retailer 6
-
£374 GBP
View
A
Retailer 7
-
£417 GBP
View
A
Retailer 8
-
£444 GBP
View
A
Retailer 9
-
£476 GBP
View
B+
Retailer 10
-
£542 GBP
View
A
Retailer 11
-
£557 GBP
View
B+
Retailer 12
-
£632 GBP
View
B+
Retailer 13
-
£707 GBP
View
B+
Retailer 14
-
£716 GBP
View
B+
Retailer 15
-
£771 GBP
View
B+
Retailer 16
-
£779 GBP
View
B+
Retailer 17
-
£873 GBP
View
B+
Retailer 18
-
£1,009 GBP
View
B+
Retailer 19
-
£1,127 GBP
View
B+
Retailer 20
-
£1,139 GBP
View
B+
Retailer 21
-
£1,206 GBP
View
B+
Retailer 22
-
£1,253 GBP
View
B
Retailer 23
-
£1,345 GBP
View
B
Retailer 24
-
£1,363 GBP
View
Most Expensive
B
Do Amore Diamonds
27-D5960985F · Nov 4
£2,659 GBP
$3,590 USD
View
24 more retailers have this diamond
Prices start from £229 GBPSave up to £2,430 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
1.22ct Marquise
£229 GBP