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Round|Lab Grown|IGI

1.65ct J SI2 Round Lab Grown Diamond

ID • J/SI2 • IGI LG499105227

Shape and cutting style on the report: Round brilliant

Certificate IGI LG499105227

Diamond specifications and retailer prices

From €823 EUR
$920 USD
As of October 30, 2026
Save €3,034 EUR (79%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €3,857 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.65ct lab-grown round diamond

This 1.65ct lab-grown round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG499105227 or 499105227. Listed at 10 retailers as of October 29, 2026, with prices from €823 to €3,857, a €3,034 spread on the same certified stone. MOH London lists it at €3,857. 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

1.65
Carat
J
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499105227
Dimensions7.56 × 7.53 × 4.68 mm
L/W Ratio1.00
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
7.56 mm7.53 mm1.65 ctJ / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499105227
Side View
Table 55.5%Crown 35.7°Girdle: MediumPavilion 40.2°Culet: NoneDepth 62.1%

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: Oct 30
Current: €3,857 EUR|Low: €823 EUR|High: €3,888 EUR|Avg: €1,772 EUR|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 2€823 EUR
Retailer 5€1,029 EUR
Retailer 8€1,120 EUR
Retailer 10€1,153 EUR
Retailer 6€1,194 EUR
Retailer 3€1,309 EUR
Retailer 12€1,705 EUR
Retailer 7€1,897 EUR
Retailer 9€2,239 EUR
Retailer 11€2,353 EUR
Retailer 4€2,671 EUR
MOH London€3,857 EUR

17 data points across 12 retailers

10 retailers€823 EUR to €3,857 EUR

A
Cheapest Retailer
-
€823 EUR
$920 USD
B+
Retailer 2
-
€1,029 EUR
$1,150 USD
View
A
Retailer 3
-
€1,120 EUR
$1,251 USD
View
B+
Retailer 4
-
€1,153 EUR
$1,288 USD
View
Final sale: no returns
Retailer 5
-
€1,194 EUR
$1,334 USD
View
Price last confirmed 19 days ago
B+
Retailer 6
-
€1,194 EUR
$1,334 USD
View
B
Retailer 7
-
€1,897 EUR
$2,119 USD
View
B
Retailer 8
-
€2,239 EUR
$2,501 USD
View
B
Retailer 9
-
€2,353 EUR
$2,629 USD
View
Most Expensive
B
MOH London
LG499105227 · Oct 29
€3,857 EUR
£3,393 GBP
View
9 more retailers have this diamond
Prices start from €823 EURSave up to €3,034 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
1.65ct Round
€823 EUR