CaratHunter
Plans
Marquise|Lab Grown|IGI

1.22ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG669419568

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG669419568

Diamond specifications and retailer prices

From £253 GBP
As of November 4, 2026
Save £1,258 GBP (83%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £1,511 GBP at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

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 LG669419568 or 669419568. Listed at 25 retailers as of November 4, 2026, with prices from £253 to £1,511, a £1,258 spread on the same certified stone. Brilliant Earth lists it at £1,511. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG669419568
Dimensions10.99 × 5.64 × 3.56 mm
L/W Ratio1.95
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
10.99 mm5.64 mm1.22 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG669419568
Side View
Table 57.0%Crown 33.5°Girdle: MED-THKPavilion 40.9°Culet: NoneDepth 63.1%

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: £1,511 GBP|Low: £253 GBP|High: £1,956 GBP|Avg: £927 GBP|-22.7%
Brilliant Earth
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
November 5, 2026
Retailer 22£253 GBP
Retailer 21£283 GBP
Retailer 6£293 GBP
Retailer 2£314 GBP
Retailer 19£360 GBP
Retailer 18£411 GBP
Retailer 3£444 GBP
Retailer 13£557 GBP
Retailer 16£577 GBP
Retailer 17£628 GBP
Retailer 12£632 GBP
Retailer 10£707 GBP
Retailer 8£716 GBP
Retailer 20£771 GBP
Retailer 24£920 GBP
Retailer 23£1,009 GBP
Retailer 9£1,040 GBP
Retailer 5£1,055 GBP
Retailer 15£1,130 GBP
Retailer 7£1,201 GBP
Retailer 4£1,219 GBP
Retailer 14£1,408 GBP
Retailer 11£1,505 GBP
Brilliant Earth£1,511 GBP

27 data points across 24 retailers

25 retailers£253 GBP to £1,511 GBP

A
Cheapest Retailer
-
£253 GBP
A
Retailer 2
-
£283 GBP
View
Final sale: no returns
A
Retailer 3
-
£293 GBP
View
A
Retailer 4
-
£314 GBP
View
A
Retailer 5
-
£360 GBP
View
A
Retailer 6
-
£411 GBP
View
A
Retailer 7
-
£444 GBP
View
A
Retailer 8
-
£557 GBP
View
B+
Retailer 9
-
£577 GBP
View
B+
Retailer 10
-
£628 GBP
View
B+
Retailer 11
-
£632 GBP
View
B+
Retailer 12
-
£707 GBP
View
B+
Retailer 13
-
£716 GBP
View
B+
Retailer 14
-
£771 GBP
View
B+
Retailer 15
-
£920 GBP
View
B
Retailer 16
-
£1,009 GBP
View
B
Retailer 17
-
£1,040 GBP
View
B
Retailer 18
-
£1,055 GBP
View
Retailer 19
-
£1,130 GBP
View
Price last confirmed 8 days ago
B
Retailer 20
-
£1,201 GBP
View
B
Retailer 21
-
£1,219 GBP
View
Retailer 22
-
£1,271 GBP
View
Price last confirmed 28 days ago
B
Retailer 23
-
£1,408 GBP
View
B
Retailer 24
-
£1,505 GBP
View
Most Expensive
B
Brilliant Earth
13182545A · Nov 4
£1,511 GBP
$2,040 USD
View
24 more retailers have this diamond
Prices start from £253 GBPSave up to £1,258 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
£253 GBP