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Round|Lab Grown|IGI

1.24ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG799670980

Shape and cutting style on the report: Round brilliant

Certificate IGI LG799670980

Diamond specifications and retailer prices

From €151 EUR
As of November 1, 2026
Save €728 EUR (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €879 EUR at MOH London · As of November 2, 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 LG799670980 or 799670980. Listed at 12 retailers as of November 1, 2026, with prices from €151 to €879, a €728 spread on the same certified stone. MOH London lists it at €879. 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
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.2°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799670980
Dimensions6.82 × 6.78 × 4.28 mm
L/W Ratio1.01
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
6.82 mm6.78 mm1.24 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG799670980
Side View
Table 54.0%Crown 35.2°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 62.9%

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: €879 EUR|Low: €95 EUR|High: €890 EUR|Avg: €357 EUR|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 5€95 EUR
Retailer 9€151 EUR
Retailer 10€170 EUR
Retailer 4€188 EUR
Retailer 2€323 EUR
Retailer 7€334 EUR
Retailer 3€336 EUR
Retailer 13€351 EUR
Retailer 12€411 EUR
Retailer 6€432 EUR
Retailer 8€488 EUR
Retailer 11€526 EUR
MOH London€879 EUR

37 data points across 13 retailers

12 retailers€151 EUR to €879 EUR

A
Cheapest Retailer
-
€151 EUR
A
Retailer 2
-
€170 EUR
View
Final sale: no returns
Retailer 3
-
€188 EUR
View
Price last confirmed 12 days ago
A
Retailer 4
-
€323 EUR
View
A
Retailer 5
-
€334 EUR
View
A
Retailer 6
-
€336 EUR
View
B+
Retailer 7
-
€351 EUR
View
B+
Retailer 8
-
€411 EUR
View
B+
Retailer 9
-
€432 EUR
View
B
Retailer 10
-
€488 EUR
View
B+
Retailer 11
-
€526 EUR
View
Most Expensive
B
MOH London
LG799670980 · Nov 2
€879 EUR
£777 GBP
View
11 more retailers have this diamond
Prices start from €151 EURSave up to €728 EUR

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
€151 EUR