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Round|Lab Grown|IGI

1.25ct D SI1 Round Lab Grown Diamond

VG • D/SI1 • IGI LG784643984

Shape and cutting style on the report: Round brilliant

Certificate IGI LG784643984

Diamond specifications and retailer prices

From €152 EUR
As of November 1, 2026
Save €734 EUR (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €886 EUR at MOH London · As of November 2, 2026
View at MOH London

About this 1.25ct lab-grown round diamond

This 1.25ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG784643984 or 784643984. Listed at 11 retailers as of November 1, 2026, with prices from €152 to €886, a €734 spread on the same certified stone. MOH London lists it at €886. 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
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.9°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784643984
Dimensions6.84 × 6.76 × 4.27 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
6.84 mm6.76 mm1.25 ctD / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG784643984
Side View
Table 59.0%Crown 38.9°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: €886 EUR|Low: €92 EUR|High: €896 EUR|Avg: €345 EUR|-1.1%
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 6, 2026
Retailer 4€92 EUR
Retailer 8€152 EUR
Retailer 9€171 EUR
Retailer 3€190 EUR
Retailer 2€326 EUR
Retailer 6€337 EUR
Retailer 12€338 EUR
Retailer 11€356 EUR
Retailer 10€413 EUR
Retailer 5€432 EUR
Retailer 7€493 EUR
MOH London€886 EUR

35 data points across 12 retailers

11 retailers€152 EUR to €886 EUR

A
Cheapest Retailer
-
€152 EUR
A
Retailer 2
-
€171 EUR
View
Final sale: no returns
Retailer 3
-
€190 EUR
View
Price last confirmed 12 days ago
A
Retailer 4
-
€326 EUR
View
B+
Retailer 5
-
€337 EUR
View
B+
Retailer 6
-
€338 EUR
View
B+
Retailer 7
-
€356 EUR
View
B+
Retailer 8
-
€413 EUR
View
B+
Retailer 9
-
€432 EUR
View
B
Retailer 10
-
€493 EUR
View
Most Expensive
B
MOH London
LG784643984 · Nov 2
€886 EUR
£783 GBP
View
10 more retailers have this diamond
Prices start from €152 EURSave up to €734 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
1.25ct Round
€152 EUR