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Round|Lab Grown|IGI

1.80ct I SI2 Round Lab Grown Diamond

EX • I/SI2 • IGI LG476186438

Shape and cutting style on the report: Round brilliant

Certificate IGI LG476186438

Diamond specifications and retailer prices

From $1,300 USD
As of October 29, 2026
Save $3,588 USD (73%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,888 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.8ct lab-grown round diamond

This 1.8ct lab-grown round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG476186438 or 476186438. Listed at 10 retailers as of October 29, 2026, with prices from $1,300 to $4,888, a $3,588 spread on the same certified stone. MOH London lists it at $4,888. 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

1.80
Carat
I
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle32.4°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG476186438
Dimensions7.85 × 7.92 × 4.73 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
7.85 mm7.92 mm1.80 ctI / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG476186438
Side View
Table 62.0%Crown 32.4°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 59.9%

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: $4,888 USD|Low: $1,099 USD|High: $4,928 USD|Avg: $2,330 USD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 11$1,099 USD
Retailer 4$1,300 USD
Retailer 2$1,468 USD
Retailer 7$1,644 USD
Retailer 5$1,702 USD
Retailer 8$1,702 USD
Retailer 10$2,321 USD
Retailer 6$2,684 USD
Retailer 9$3,090 USD
Retailer 3$3,811 USD
MOH London$4,888 USD

14 data points across 11 retailers

10 retailers$1,300 USD to $4,888 USD

A
Cheapest Retailer
-
$1,300 USD
B+
Retailer 2
-
$1,468 USD
View
B+
Retailer 3
-
$1,597 USD
View
B+
Retailer 4
-
$1,644 USD
View
Final sale: no returns
Retailer 5
-
$1,702 USD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
$1,702 USD
View
B
Retailer 7
-
$2,684 USD
View
B
Retailer 8
-
$3,090 USD
View
B
Retailer 9
-
$3,191 USD
View
Most Expensive
B
MOH London
LG476186438 · Oct 29
$4,888 USD
£3,849 GBP
View
9 more retailers have this diamond
Prices start from $1,300 USDSave up to $3,588 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
1.80ct Round
$1,300 USD