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Round|Lab Grown|IGI

1.90ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG488156495

Shape and cutting style on the report: Round brilliant

Certificate IGI LG488156495

Diamond specifications and retailer prices

From $1,070 USD
As of October 31, 2026
Save $4,632 USD (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,702 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.9ct lab-grown round diamond

This 1.9ct lab-grown round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG488156495 or 488156495. Listed at 11 retailers as of October 31, 2026, with prices from $1,070 to $5,702, a $4,632 spread on the same certified stone. MOH London lists it at $5,702. 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

1.90
Carat
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG488156495
Dimensions8.02 × 7.98 × 4.79 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
8.02 mm7.98 mm1.90 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG488156495
Side View
Table 58.0%Crown 33°Girdle: MediumPavilion 40.2°Culet: NoneDepth 59.9%

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: $5,702 USD|Low: $1,070 USD|High: $5,779 USD|Avg: $2,673 USD
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$1,070 USD
Retailer 4$1,721 USD
Retailer 7$1,926 USD
Retailer 5$1,996 USD
Retailer 10$2,034 USD
Retailer 8$2,165 USD
Retailer 9$2,675 USD
Retailer 6$3,135 USD
Retailer 3$3,442 USD
MOH London$5,702 USD

14 data points across 10 retailers

11 retailers$1,070 USD to $5,702 USD

A
Cheapest Retailer
-
$1,070 USD
B+
Retailer 2
-
$1,721 USD
View
B+
Retailer 3
-
$1,873 USD
View
B+
Retailer 4
-
$1,926 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,996 USD
View
Retailer 6
-
$1,996 USD
View
Price last confirmed 20 days ago
B+
Retailer 7
-
$2,165 USD
View
B
Retailer 8
-
$3,135 USD
View
B
Retailer 9
-
$3,442 USD
View
B
Retailer 10
-
$3,742 USD
View
Most Expensive
B
MOH London
LG488156495 · Nov 1
$5,702 USD
£4,490 GBP
View
10 more retailers have this diamond
Prices start from $1,070 USDSave up to $4,632 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
1.90ct Round
$1,070 USD