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Marquise|Lab Grown|IGI

1.25ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG773614877

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG773614877

Diamond specifications and retailer prices

From £181 GBP
As of November 4, 2026
Save £1,559 GBP (90%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,741 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 1.25ct lab-grown marquise diamond

This 1.25ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG773614877 or 773614877. Listed at 22 retailers as of November 4, 2026, with prices from £181 to £1,741, a £1,559 spread on the same certified stone. Do Amore Diamonds lists it at £1,741. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG773614877
Dimensions11.03 × 5.63 × 3.53 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
11.03 mm5.63 mm1.25 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG773614877
Side View
Table 58.0%Crown 35.7°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 62.7%

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: £1,741 GBP|Low: £181 GBP|High: £1,756 GBP|Avg: £612 GBP|-0.8%
Do Amore Diamonds
Retailer 2
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November 5, 2026
Retailer 10£181 GBP
Retailer 6£202 GBP
Retailer 3£210 GBP
Retailer 19£225 GBP
Retailer 21£225 GBP
Retailer 11£332 GBP
Retailer 7£379 GBP
Retailer 5£402 GBP
Retailer 16£427 GBP
Retailer 13£431 GBP
Retailer 20£470 GBP
Retailer 15£609 GBP
Retailer 18£725 GBP
Retailer 17£798 GBP
Retailer 4£921 GBP
Retailer 9£947 GBP
Retailer 12£970 GBP
Retailer 8£988 GBP
Retailer 2£991 GBP
Retailer 14£1,078 GBP
Do Amore Diamonds£1,741 GBP

42 data points across 21 retailers

22 retailers£181 GBP to £1,741 GBP

A
Cheapest Retailer
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£181 GBP
A
Retailer 2
-
£202 GBP
View
Final sale: no returns
A
Retailer 3
-
£210 GBP
View
A
Retailer 4
-
£225 GBP
View
Retailer 5
-
£225 GBP
View
Price last confirmed 11 days ago
A
Retailer 6
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£332 GBP
View
A
Retailer 7
-
£379 GBP
View
A
Retailer 8
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£402 GBP
View
A
Retailer 9
-
£427 GBP
View
A
Retailer 10
-
£431 GBP
View
A
Retailer 11
-
£470 GBP
View
A
Retailer 12
-
£609 GBP
View
B+
Retailer 13
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£725 GBP
View
B+
Retailer 14
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£798 GBP
View
B+
Retailer 15
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£921 GBP
View
B+
Retailer 16
-
£947 GBP
View
B+
Retailer 17
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£970 GBP
View
B+
Retailer 18
-
£988 GBP
View
B+
Retailer 19
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£991 GBP
View
Retailer 20
-
£1,078 GBP
View
Price last confirmed 32 days ago
Retailer 21
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£1,130 GBP
View
Price last confirmed 36 days ago
Most Expensive
B
Do Amore Diamonds
27-A4DC3591E · Nov 4
£1,741 GBP
$2,350 USD
View
21 more retailers have this diamond
Prices start from £181 GBPSave up to £1,559 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
1.25ct Marquise
£181 GBP