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Round|Lab Grown|IGI

1.24ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG760599794

Shape and cutting style on the report: Round brilliant

Certificate IGI LG760599794

Diamond specifications and retailer prices

From £124 GBP
As of November 1, 2026
Save £314 GBP (72%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £722 GBP at MOH London · As of October 26, 2026
View at MOH London

About this 1.24ct lab-grown round diamond

This 1.24ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG760599794 or 760599794. Listed at 12 retailers as of November 1, 2026, with a 253% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.24
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG760599794
Dimensions6.86 × 6.82 × 4.27 mm
L/W Ratio1.01
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
6.86 mm6.82 mm1.24 ctD / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG760599794
Side View
Table 57.0%Crown 36.1°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.4%

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: Nov 1
Current: £722 GBP|Low: £119 GBP|High: £743 GBP|Avg: £314 GBP|-2.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 4, 2026
Retailer 8£124 GBP
Retailer 9£140 GBP
Retailer 3£155 GBP
Retailer 5£264 GBP
Retailer 7£273 GBP
Retailer 11£277 GBP
Retailer 12£292 GBP
Retailer 10£340 GBP
Retailer 2£360 GBP
Retailer 6£403 GBP
Retailer 4£438 GBP
MOH London£722 GBP

36 data points across 12 retailers

12 retailers£124 GBP to £438 GBP

A
Cheapest Retailer
-
£124 GBP
A
Retailer 2
-
£140 GBP
View
Final sale: no returns
Retailer 3
-
£155 GBP
View
Price last confirmed 12 days ago
A
Retailer 4
-
£264 GBP
View
A
Retailer 5
-
£273 GBP
View
B+
Retailer 6
-
£277 GBP
View
B+
Retailer 7
-
£292 GBP
View
B+
Retailer 8
-
£340 GBP
View
B+
Retailer 9
-
£360 GBP
View
B
Retailer 10
-
£403 GBP
View
B+
Retailer 11
-
£438 GBP
View
Most Expensive
MOH London
LG760599794 · Oct 26
£722 GBP
View
Price last confirmed 10 days ago
11 more retailers have this diamond
Prices start from £124 GBPSave up to £314 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
1.24ct Round
£124 GBP