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Round|Lab Grown|IGI

1.61ct J SI1 Round Lab Grown Diamond

ID • J/SI1 • IGI LG499189117

Shape and cutting style on the report: Round brilliant

Certificate IGI LG499189117

Diamond specifications and retailer prices

From €823 EUR
$920 USD
As of October 31, 2026
Save €3,327 EUR (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €4,150 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.61ct lab-grown round diamond

This 1.61ct lab-grown round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG499189117 or 499189117. Listed at 11 retailers as of October 31, 2026, with prices from €823 to €4,150, a €3,327 spread on the same certified stone. MOH London lists it at €4,150. 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

1.61
Carat
J
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499189117
Dimensions7.48 × 7.44 × 4.65 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
7.48 mm7.44 mm1.61 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499189117
Side View
Table 58.5%Crown 35.9°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.3%

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 31
Current: €4,150 EUR|Low: €823 EUR|High: €4,206 EUR|Avg: €1,850 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 2€823 EUR
Retailer 3€1,113 EUR
Retailer 6€1,247 EUR
Retailer 4€1,292 EUR
Retailer 7€1,446 EUR
Retailer 10€1,531 EUR
Retailer 9€1,822 EUR
Retailer 5€2,046 EUR
Retailer 8€2,475 EUR
MOH London€4,150 EUR

17 data points across 10 retailers

11 retailers€823 EUR to €4,150 EUR

A
Cheapest Retailer
-
€823 EUR
$920 USD
A
Retailer 2
-
€1,113 EUR
$1,244 USD
View
B+
Retailer 3
-
€1,212 EUR
$1,354 USD
View
B+
Retailer 4
-
€1,247 EUR
$1,393 USD
View
Final sale: no returns
B+
Retailer 5
-
€1,292 EUR
$1,443 USD
View
Retailer 6
-
€1,292 EUR
$1,443 USD
View
Price last confirmed 20 days ago
B+
Retailer 7
-
€1,446 EUR
$1,615 USD
View
B
Retailer 8
-
€2,046 EUR
$2,286 USD
View
B
Retailer 9
-
€2,421 EUR
$2,705 USD
View
B
Retailer 10
-
€2,475 EUR
$2,765 USD
View
Most Expensive
B
MOH London
LG499189117 · Nov 1
€4,150 EUR
£3,651 GBP
View
10 more retailers have this diamond
Prices start from €823 EURSave up to €3,327 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
1.61ct Round
€823 EUR