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Round|Lab Grown|IGI

1.25ct J VS1 Round Lab Grown Diamond

EX • J/VS1 • IGI LG447001340

Shape and cutting style on the report: Round brilliant

Certificate IGI LG447001340

Diamond specifications and retailer prices

From €633 EUR
As of November 5, 2026
Save €3,710 EUR (85%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €4,343 EUR at MOH London · As of November 5, 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 J colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG447001340 or 447001340. Listed at 13 retailers as of November 5, 2026, with prices from €633 to €4,343, a €3,710 spread on the same certified stone. MOH London lists it at €4,343. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
J
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447001340
Dimensions6.79 × 6.82 × 4.31 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
6.79 mm6.82 mm1.25 ctJ / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447001340
Side View
Table 58.0%Crown 36.2°Girdle: MED-STKPavilion 41°Culet: NoneDepth 63.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: €4,343 EUR|Low: €633 EUR|High: €4,412 EUR|Avg: €1,973 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
Retailer 14
November 6, 2026
Retailer 8€633 EUR
Retailer 9€1,168 EUR
Retailer 14€1,271 EUR
Retailer 13€1,309 EUR
Retailer 10€1,355 EUR
Retailer 12€1,355 EUR
Retailer 4€1,510 EUR
Retailer 5€1,857 EUR
Retailer 11€2,144 EUR
Retailer 7€2,493 EUR
Retailer 6€2,526 EUR
Retailer 3€2,540 EUR
Retailer 2€2,966 EUR
MOH London€4,343 EUR

43 data points across 14 retailers

13 retailers€633 EUR to €4,343 EUR

A
Cheapest Retailer
-
€633 EUR
B+
Retailer 2
-
€1,168 EUR
View
B+
Retailer 3
-
€1,271 EUR
View
B
Retailer 4
-
€1,309 EUR
View
Final sale: no returns
B+
Retailer 5
-
€1,355 EUR
View
Retailer 6
-
€1,355 EUR
View
Price last confirmed 25 days ago
B
Retailer 7
-
€1,510 EUR
View
B
Retailer 8
-
€2,144 EUR
View
B
Retailer 9
-
€2,493 EUR
View
B
Retailer 10
-
€2,526 EUR
View
B
Retailer 11
-
€2,540 EUR
View
B
Retailer 12
-
€2,966 EUR
View
Most Expensive
B
MOH London
LG447001340 · Nov 5
€4,343 EUR
£3,838 GBP
View
12 more retailers have this diamond
Prices start from €633 EURSave up to €3,710 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
€633 EUR