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Round|Lab Grown|IGI

1.16ct J SI1 Round Lab Grown Diamond

ID • J/SI1 • IGI LG487109923

Shape and cutting style on the report: Round brilliant

Certificate IGI LG487109923

Diamond specifications and retailer prices

From €588 EUR
As of November 5, 2026
Save €3,182 EUR (84%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €3,770 EUR at MOH London · As of November 5, 2026
View at MOH London

About this 1.16ct lab-grown round diamond

This 1.16ct lab-grown round sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG487109923 or 487109923. Listed at 13 retailers as of November 5, 2026, with prices from €588 to €3,770, a €3,182 spread on the same certified stone. MOH London lists it at €3,770. 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

1.16
Carat
J
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG487109923
Dimensions6.74 × 6.78 × 4.12 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.74 mm6.78 mm1.16 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG487109923
Side View
Table 59.5%Crown 33°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 60.8%

Caratlytics Score

How it works →
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 5
Current: €3,770 EUR|Low: €588 EUR|High: €3,831 EUR|Avg: €1,567 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 7€588 EUR
Retailer 9€961 EUR
Retailer 14€1,046 EUR
Retailer 13€1,076 EUR
Retailer 10€1,115 EUR
Retailer 12€1,115 EUR
Retailer 4€1,270 EUR
Retailer 2€1,279 EUR
Retailer 5€1,590 EUR
Retailer 11€1,776 EUR
Retailer 8€1,911 EUR
Retailer 3€2,089 EUR
Retailer 6€2,261 EUR
MOH London€3,770 EUR

40 data points across 14 retailers

13 retailers€588 EUR to €3,770 EUR

A
Cheapest Retailer
-
€588 EUR
B+
Retailer 2
-
€961 EUR
View
B+
Retailer 3
-
€1,046 EUR
View
B+
Retailer 4
-
€1,076 EUR
View
Final sale: no returns
B+
Retailer 5
-
€1,115 EUR
View
Retailer 6
-
€1,115 EUR
View
Price last confirmed 25 days ago
B+
Retailer 7
-
€1,270 EUR
View
B+
Retailer 8
-
€1,279 EUR
View
B
Retailer 9
-
€1,776 EUR
View
Retailer 10
-
€1,911 EUR
View
Price last confirmed 8 days ago
B
Retailer 11
-
€2,089 EUR
View
B
Retailer 12
-
€2,261 EUR
View
Most Expensive
B
MOH London
LG487109923 · Nov 5
€3,770 EUR
£3,332 GBP
View
12 more retailers have this diamond
Prices start from €588 EURSave up to €3,182 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
1.16ct Round
€588 EUR