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Round|Lab Grown|IGI

1.86ct H SI1 Round Lab Grown Diamond

EX • H/SI1 • IGI LG582366916

Shape and cutting style on the report: Round brilliant

Certificate IGI LG582366916

Diamond specifications and retailer prices

From $353 USD
As of October 30, 2026
Save $1,360 USD (79%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,713 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.86ct lab-grown round diamond

This 1.86ct lab-grown round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG582366916 or 582366916. Listed at 10 retailers as of October 30, 2026, with prices from $353 to $1,713, a $1,360 spread on the same certified stone. MOH London lists it at $1,713. 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

1.86
Carat
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG582366916
Dimensions7.95 × 7.93 × 4.81 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
7.95 mm7.93 mm1.86 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG582366916
Side View
Table 56.0%Crown 32.5°Girdle: MediumPavilion 40.4°Culet: NoneDepth 60.6%

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 30
Current: $1,713 USD|Low: $353 USD|High: $1,830 USD|Avg: $950 USD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 9$353 USD
Retailer 3$550 USD
Retailer 5$550 USD
Retailer 7$650 USD
Retailer 6$674 USD
Retailer 2$678 USD
Retailer 4$1,000 USD
Retailer 10$1,242 USD
Retailer 8$1,605 USD
MOH London$1,713 USD

22 data points across 10 retailers

10 retailers$353 USD to $1,713 USD

A
Cheapest Retailer
-
$353 USD
Final sale: no returns
A
Retailer 2
-
$550 USD
View
A
Retailer 3
-
$550 USD
HK$4,300 HKD
View
A
Retailer 4
-
$650 USD
View
A
Retailer 5
-
$674 USD
View
A
Retailer 6
-
$678 USD
€646 EUR
View
A
Retailer 7
-
$1,000 USD
View
A
Retailer 8
-
$1,410 USD
View
B+
Retailer 9
-
$1,605 USD
SGD 2,169 SGD
View
Most Expensive
B+
MOH London
LG582366916 · Nov 1
$1,713 USD
£1,349 GBP
View
9 more retailers have this diamond
Prices start from $353 USDSave up to $1,360 USD

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
1.86ct Round
$353 USD