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Marquise|Lab Grown|IGI

1.25ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG833685342

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG833685342

Diamond specifications and retailer prices

From £180 GBP
As of November 4, 2026
Save £1,546 GBP (90%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,726 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 LG833685342 or 833685342. Listed at 14 retailers as of November 4, 2026, with prices from £180 to £1,726, a £1,546 spread on the same certified stone. Do Amore Diamonds lists it at £1,726. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.9°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG833685342
Dimensions11.01 × 5.74 × 3.42 mm
L/W Ratio1.92
Girdle conditionFaceted
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
11.01 mm5.74 mm1.25 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG833685342
Side View
Table 58.0%Crown 31.9°Girdle: MED-STKPavilion 38.9°Culet: NoneDepth 59.6%

Caratlytics Score

How it works →
A+
Exceptional
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: £1,726 GBP|Low: £176 GBP|High: £7,473 GBP|Avg: £1,242 GBP|-2.1%
Do Amore 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
Retailer 15
Retailer 16
November 3, 2026
Retailer 11£180 GBP
Retailer 16£209 GBP
Retailer 7£352 GBP
Retailer 13£376 GBP
Retailer 15£413 GBP
Retailer 5£481 GBP
Retailer 6£574 GBP
Retailer 2£605 GBP
Retailer 12£721 GBP
Retailer 14£793 GBP
Retailer 9£987 GBP
Retailer 3£1,119 GBP
Retailer 4£1,302 GBP
Retailer 10£1,363 GBP
Do Amore Diamonds£1,726 GBP
Retailer 8£7,473 GBP

27 data points across 16 retailers

14 retailers£180 GBP to £1,726 GBP

A+
Cheapest Retailer
-
£180 GBP
A
Retailer 2
-
£209 GBP
View
A
Retailer 3
-
£376 GBP
View
Retailer 4
-
£413 GBP
View
Price last confirmed 9 days ago
A
Retailer 5
-
£481 GBP
View
A
Retailer 6
-
£574 GBP
View
A
Retailer 7
-
£605 GBP
View
B+
Retailer 8
-
£721 GBP
View
B+
Retailer 9
-
£793 GBP
View
B+
Retailer 10
-
£987 GBP
View
Retailer 11
-
£1,119 GBP
View
Price last confirmed 8 days ago
Retailer 12
-
£1,302 GBP
View
Price last confirmed 28 days ago
B+
Retailer 13
-
£1,363 GBP
View
Most Expensive
B
Do Amore Diamonds
27-69F246657 · Nov 4
£1,726 GBP
$2,330 USD
View
13 more retailers have this diamond
Prices start from £180 GBPSave up to £1,546 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
£180 GBP