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Round|Lab Grown|IGI

0.90ct I SI1 Round Lab Grown Diamond

EX • I/SI1 • IGI LG455035501

Shape and cutting style on the report: Round brilliant

Certificate IGI LG455035501

Diamond specifications and retailer prices

From $381 USD
As of October 29, 2026
Save $1,477 USD (79%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,858 USD at MOH London · As of October 29, 2026
View at MOH London

About this 0.9ct lab-grown round diamond

This 0.9ct lab-grown round sits in the just-under-one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG455035501 or 455035501. Listed at 10 retailers as of October 29, 2026, with prices from $381 to $1,858, a $1,477 spread on the same certified stone. MOH London lists it at $1,858. 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

0.90
Carat
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.3°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG455035501
Dimensions6.05 × 6.12 × 3.85 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.05 mm6.12 mm0.90 ctI / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG455035501
Side View
Table 60.5%Crown 36.3°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 63.2%

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 29
Current: $1,858 USD|Low: $381 USD|High: $1,900 USD|Avg: $982 USD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 4$381 USD
Retailer 7$427 USD
Retailer 5$473 USD
Retailer 2$520 USD
Retailer 6$753 USD
Retailer 9$859 USD
Retailer 8$910 USD
Retailer 3$1,327 USD
MOH London$1,858 USD
Retailer 10$1,900 USD

17 data points across 10 retailers

10 retailers$381 USD to $1,858 USD

A
Cheapest Retailer
-
$381 USD
A
Retailer 2
-
$427 USD
View
Final sale: no returns
A
Retailer 3
-
$427 USD
View
A
Retailer 4
-
$473 USD
View
A
Retailer 5
-
$473 USD
View
A
Retailer 6
-
$520 USD
View
B+
Retailer 7
-
$753 USD
View
B+
Retailer 8
-
$1,327 USD
View
B
Retailer 9
-
$1,520 USD
View
Most Expensive
B
MOH London
LG455035501 · Oct 29
$1,858 USD
£1,463 GBP
View
9 more retailers have this diamond
Prices start from $381 USDSave up to $1,477 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
0.90ct Round
$381 USD