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Marquise|Lab Grown|IGI

1.22ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG628488228

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG628488228

Diamond specifications and retailer prices

From £196 GBP
$263 USD
As of October 30, 2026
Save £1,423 GBP (88%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: £1,620 GBP at Do Amore Diamonds · As of October 31, 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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG628488228 or 628488228. Listed at 27 retailers as of October 30, 2026, with prices from £196 to £1,620, a £1,423 spread on the same certified stone. Do Amore Diamonds lists it at £1,620. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.22
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG628488228
Dimensions10.94 × 5.58 × 3.54 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
10.94 mm5.58 mm1.22 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG628488228
Side View
Table 58.0%Crown 34.9°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 63.4%

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: Oct 30
Current: £1,620 GBP|Low: £169 GBP|High: £1,620 GBP|Avg: £688 GBP
Do Amore Diamonds
Retailer 2
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Retailer 21
October 31, 2026
Retailer 9£169 GBP
Retailer 18£196 GBP
Retailer 7£210 GBP
Retailer 6£325 GBP
Retailer 5£327 GBP
Retailer 15£385 GBP
Retailer 21£390 GBP
Retailer 17£398 GBP
Retailer 2£440 GBP
Retailer 14£452 GBP
Retailer 8£461 GBP
Retailer 10£509 GBP
Retailer 20£676 GBP
Retailer 3£871 GBP
Retailer 13£929 GBP
Retailer 16£933 GBP
Retailer 11£933 GBP
Retailer 4£953 GBP
Retailer 19£1,179 GBP
Retailer 12£1,470 GBP
Do Amore Diamonds£1,620 GBP

38 data points across 21 retailers

27 retailers£196 GBP to £1,620 GBP

Retailer 1
-
£169 GBP
$227 USD
Price last confirmed 24 days ago
A
Retailer 2
-
£196 GBP
$263 USD
View
Final sale: no returns
Retailer 3
-
£210 GBP
$281 USD
View
Price last confirmed 24 days ago
Retailer 4
-
£210 GBP
$281 USD
View
Price last confirmed 22 days ago
Retailer 5
-
£254 GBP
$341 USD
View
Price last confirmed 33 days ago
Retailer 6
-
£296 GBP
$396 USD
View
Price last confirmed 34 days ago
Retailer 7
-
£312 GBP
$418 USD
View
Price last confirmed 34 days ago
A
Retailer 8
-
£325 GBP
HK$3,400 HKD
View
A
Retailer 9
-
£327 GBP
$438 USD
View
A
Retailer 10
-
£385 GBP
€491 EUR
View
A
Retailer 11
-
£390 GBP
$522 USD
View
A
Retailer 12
-
£398 GBP
ZAR 8,605 ZAR
View
A
Retailer 13
-
£440 GBP
View
A
Retailer 14
-
£461 GBP
$618 USD
View
Retailer 15
-
£509 GBP
$682 USD
View
Price last confirmed 9 days ago
B+
Retailer 16
-
£676 GBP
$906 USD
View
B+
Retailer 17
-
£744 GBP
$997 USD
View
Retailer 18
-
£744 GBP
$997 USD
View
Price last confirmed 22 days ago
B+
Retailer 19
-
£871 GBP
$1,167 USD
View
B+
Retailer 20
-
£929 GBP
A$1,914 AUD
View
B+
Retailer 21
-
£933 GBP
View
B+
Retailer 22
-
£933 GBP
SGD 1,689 SGD
View
B+
Retailer 23
-
£953 GBP
$1,277 USD
View
Retailer 24
-
£1,121 GBP
$1,502 USD
View
Price last confirmed 32 days ago
B+
Retailer 25
-
£1,179 GBP
$1,580 USD
View
B
Retailer 26
-
£1,470 GBP
$1,970 USD
View
Most Expensive
B
Do Amore Diamonds
27-7CB71A8B0 · Oct 31
£1,620 GBP
$2,170 USD
View
26 more retailers have this diamond
Prices start from £196 GBPSave up to £1,423 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
£196 GBP