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Oval|Lab Grown|IGI

1.00ct I SI1 Oval Lab Grown Diamond

ID • I/SI1 • IGI LG451056241

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG451056241

Diamond specifications and retailer prices

From $580 USD
As of November 6, 2026
Save $3,330 USD (85%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,910 USD at MOH London · As of November 3, 2026
View at MOH London

About this 1ct lab-grown oval diamond

This 1ct lab-grown oval sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG451056241 or 451056241. Listed at 10 retailers as of November 3, 2026, with prices from $580 to $3,910, a $3,330 spread on the same certified stone. MOH London lists it at $3,910. 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

1.00
Carat
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451056241
Dimensions8.42 × 5.54 × 3.35 mm
L/W Ratio1.52
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.42 mm5.54 mm1.00 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG451056241
Side View
Table 54.5%Crown 32.9°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 60.5%

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: Nov 6
Current: $3,910 USD|Low: $580 USD|High: $3,957 USD|Avg: $1,895 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 2$580 USD
Retailer 4$994 USD
Retailer 6$1,330 USD
Retailer 7$1,660 USD
Retailer 5$1,842 USD
Retailer 3$2,485 USD
MOH London$3,910 USD

13 data points across 7 retailers

10 retailers$580 USD to $3,910 USD

A
Cheapest Retailer
-
$580 USD
B+
Retailer 2
-
$994 USD
View
B+
Retailer 3
-
$1,081 USD
View
B+
Retailer 4
-
$1,153 USD
View
Retailer 5
-
$1,153 USD
View
Price last confirmed 25 days ago
B
Retailer 6
-
$1,330 USD
View
B
Retailer 7
-
$1,842 USD
View
B
Retailer 8
-
$2,161 USD
View
B
Retailer 9
-
$2,485 USD
View
Most Expensive
B
MOH London
LG451056241 · Nov 3
$3,910 USD
£3,079 GBP
View
9 more retailers have this diamond
Prices start from $580 USDSave up to $3,330 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
1.00ct Oval
$580 USD