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Marquise|Lab Grown|IGI

1.22ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG700514306

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG700514306

Diamond specifications and retailer prices

From £276 GBP
As of November 4, 2026
Save £2,383 GBP (90%) vs most expensive(unlock to see where)
30 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 LG700514306 or 700514306. Listed at 30 retailers as of November 4, 2026, with prices from £276 to £2,659, a £2,383 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700514306
Dimensions10.99 × 5.62 × 3.51 mm
L/W Ratio1.96
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 mm5.62 mm1.22 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700514306
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.5%

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: £2,659 GBP|Low: £184 GBP|High: £2,659 GBP|Avg: £933 GBP|+50.8%
Do Amore Diamonds
Retailer 2
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November 5, 2026
Retailer 16£184 GBP
Retailer 20£276 GBP
Retailer 15£371 GBP
Retailer 13£374 GBP
Retailer 17£417 GBP
Retailer 23£444 GBP
Retailer 14£476 GBP
Retailer 12£542 GBP
Retailer 2£557 GBP
Retailer 10£632 GBP
Retailer 7£707 GBP
Retailer 5£716 GBP
Retailer 19£771 GBP
Retailer 22£873 GBP
Retailer 21£1,009 GBP
Retailer 11£1,119 GBP
Retailer 6£1,127 GBP
Retailer 3£1,139 GBP
Retailer 4£1,206 GBP
Retailer 9£1,345 GBP
Retailer 18£1,363 GBP
Retailer 8£1,505 GBP
Do Amore Diamonds£2,659 GBP

29 data points across 23 retailers

30 retailers£276 GBP to £2,659 GBP

Retailer 1
-
£184 GBP
Price last confirmed 28 days ago
A
Retailer 2
-
£276 GBP
View
Final sale: no returns
Retailer 3
-
£311 GBP
View
Price last confirmed 36 days ago
Retailer 4
-
£348 GBP
View
Price last confirmed 37 days ago
Retailer 5
-
£371 GBP
View
Price last confirmed 28 days ago
Retailer 6
-
£371 GBP
View
Price last confirmed 26 days ago
A
Retailer 7
-
£374 GBP
View
Retailer 8
-
£381 GBP
View
Price last confirmed 37 days ago
A
Retailer 9
-
£417 GBP
View
A
Retailer 10
-
£444 GBP
View
A
Retailer 11
-
£476 GBP
View
A
Retailer 12
-
£542 GBP
View
A
Retailer 13
-
£557 GBP
View
B+
Retailer 14
-
£632 GBP
View
B+
Retailer 15
-
£707 GBP
View
B+
Retailer 16
-
£716 GBP
View
B+
Retailer 17
-
£771 GBP
View
B+
Retailer 18
-
£873 GBP
View
B+
Retailer 19
-
£1,009 GBP
View
Retailer 20
-
£1,119 GBP
View
Price last confirmed 8 days ago
B
Retailer 21
-
£1,127 GBP
View
B+
Retailer 22
-
£1,139 GBP
View
B
Retailer 23
-
£1,188 GBP
View
B
Retailer 24
-
£1,206 GBP
View
Retailer 25
-
£1,317 GBP
View
Price last confirmed 26 days ago
B
Retailer 26
-
£1,345 GBP
View
B
Retailer 27
-
£1,363 GBP
View
Retailer 28
-
£1,369 GBP
View
Price last confirmed 36 days ago
B
Retailer 29
-
£1,505 GBP
View
Most Expensive
B
Do Amore Diamonds
27-46751688B · Nov 4
£2,659 GBP
$3,590 USD
View
29 more retailers have this diamond
Prices start from £276 GBPSave up to £2,383 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
£276 GBP