Round|Lab Grown|IGI

1.59ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG818686409

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818686409

Diamond specifications and retailer prices

From €182 EUR
$203 USD
As of October 29, 2026
Save €879 EUR (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €1,061 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.59ct lab-grown round diamond

This 1.59ct lab-grown round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG818686409 or 818686409. Listed at 15 retailers as of October 29, 2026, with prices from €182 to €1,061, a €879 spread on the same certified stone. MOH London lists it at €1,061. 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

1.59
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818686409
Dimensions7.49 × 7.47 × 4.59 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.49 mm7.47 mm1.59 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818686409
Side View
Table 58.0%Crown 34.9°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.4%

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: Oct 29
Current: €1,061 EUR|Low: €182 EUR|High: €1,067 EUR|Avg: €559 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
November 1, 2026
Retailer 7€182 EUR
Retailer 9€226 EUR
Retailer 10€391 EUR
Retailer 4€413 EUR
Retailer 2€414 EUR
Retailer 11€445 EUR
Retailer 6€584 EUR
Retailer 5€649 EUR
Retailer 3€773 EUR
Retailer 8€815 EUR
MOH London€1,061 EUR

40 data points across 11 retailers

15 retailers€182 EUR to €1,061 EUR

A
Cheapest Retailer
-
€182 EUR
$203 USD
A
Retailer 2
-
€211 EUR
$236 USD
View
A
Retailer 3
-
€226 EUR
$252 USD
View
A
Retailer 4
-
€226 EUR
$252 USD
View
B+
Retailer 5
-
€391 EUR
$437 USD
View
A
Retailer 6
-
€413 EUR
View
A
Retailer 7
-
€414 EUR
£364 GBP
View
A
Retailer 8
-
€445 EUR
$497 USD
View
B+
Retailer 9
-
€584 EUR
$653 USD
View
B+
Retailer 10
-
€640 EUR
$715 USD
View
Retailer 11
-
€649 EUR
$725 USD
View
Price last confirmed 13 days ago
B
Retailer 12
-
€725 EUR
$810 USD
View
B
Retailer 13
-
€773 EUR
$864 USD
View
B
Retailer 14
-
€815 EUR
$910 USD
View
Most Expensive
B
MOH London
LG818686409 · Oct 29
€1,061 EUR
£933 GBP
View
14 more retailers have this diamond
Prices start from €182 EURSave up to €879 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
1.59ct Round
€182 EUR