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Marquise|Lab Grown|IGI

1.25ct D IF Marquise Lab Grown Diamond

VG • D/IF • IGI LG762545685

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG762545685

Diamond specifications and retailer prices

From £370 GBP
As of November 4, 2026
Save £1,007 GBP (73%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,377 GBP at Novita Diamonds · As of October 30, 2026
View at Novita 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 very-good cut grade and certified by IGI LG762545685 or 762545685. Listed at 13 retailers as of October 30, 2026, with prices from £370 to £1,377, a £1,007 spread on the same certified stone. Novita Diamonds lists it at £1,377. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.25
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG762545685
Dimensions11.75 × 5.58 × 3.34 mm
L/W Ratio2.11
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
11.75 mm5.58 mm1.25 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG762545685
Side View
Table 63.0%Crown 33.6°Girdle: MED-STKPavilion 38.3°Culet: NoneDepth 59.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £1,377 GBP|Low: £370 GBP|High: £1,674 GBP|Avg: £983 GBP|+0.4%
Novita Diamonds
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
November 5, 2026
Retailer 8£370 GBP
Retailer 9£453 GBP
Retailer 2£571 GBP
Retailer 5£587 GBP
Retailer 3£646 GBP
Retailer 6£656 GBP
Retailer 13£722 GBP
Retailer 11£733 GBP
Retailer 12£1,062 GBP
Retailer 4£1,137 GBP
Retailer 10£1,230 GBP
Retailer 7£1,250 GBP
Retailer 14£1,370 GBP
Novita Diamonds£1,377 GBP

45 data points across 14 retailers

13 retailers£370 GBP to £1,377 GBP

A
Cheapest Retailer
-
£370 GBP
A
Retailer 2
-
£453 GBP
View
A
Retailer 3
-
£571 GBP
View
A
Retailer 4
-
£587 GBP
View
A
Retailer 5
-
£646 GBP
View
B+
Retailer 6
-
£656 GBP
View
B+
Retailer 7
-
£722 GBP
View
B+
Retailer 8
-
£733 GBP
View
B+
Retailer 9
-
£1,062 GBP
View
B
Retailer 10
-
£1,230 GBP
View
B
Retailer 11
-
£1,250 GBP
View
B
Retailer 12
-
£1,370 GBP
View
Most Expensive
B
Novita Diamonds
cert_762545685 · Oct 30
£1,377 GBP
A$2,860 AUD
View
12 more retailers have this diamond
Prices start from £370 GBPSave up to £1,007 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
£370 GBP