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Oval|Lab Grown|IGI

1.09ct I SI1 Oval Lab Grown Diamond

ID • I/SI1 • IGI LG445035846

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445035846

Diamond specifications and retailer prices

From $640 USD
As of October 30, 2026
Save $3,635 USD (85%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $4,275 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.09ct lab-grown oval diamond

This 1.09ct 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 LG445035846 or 445035846. Listed at 11 retailers as of October 29, 2026, with prices from $640 to $4,275, a $3,635 spread on the same certified stone. MOH London lists it at $4,275. 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

1.09
Carat
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.5°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445035846
Dimensions8.11 × 5.76 × 3.61 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.11 mm5.76 mm1.09 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG445035846
Side View
Table 59.5%Crown 34.5°Girdle: MED-THKPavilion 40.9°Culet: NoneDepth 62.7%

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 30
Current: $4,275 USD|Low: $640 USD|High: $4,309 USD|Avg: $1,934 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 30, 2026
Retailer 2$640 USD
Retailer 4$1,081 USD
Retailer 7$1,210 USD
Retailer 5$1,254 USD
Retailer 8$1,254 USD
Retailer 9$1,430 USD
Retailer 11$1,786 USD
Retailer 6$1,997 USD
Retailer 10$2,543 USD
Retailer 3$3,590 USD
MOH London$4,275 USD

13 data points across 11 retailers

11 retailers$640 USD to $4,275 USD

A
Cheapest Retailer
-
$640 USD
B+
Retailer 2
-
$1,081 USD
View
B+
Retailer 3
-
$1,176 USD
View
B+
Retailer 4
-
$1,210 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,254 USD
View
Retailer 6
-
$1,254 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
$1,430 USD
View
B
Retailer 8
-
$1,997 USD
View
B
Retailer 9
-
$2,350 USD
View
B
Retailer 10
-
$2,543 USD
View
Most Expensive
B
MOH London
LG445035846 · Oct 29
$4,275 USD
£3,366 GBP
View
10 more retailers have this diamond
Prices start from $640 USDSave up to $3,635 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
1.09ct Oval
$640 USD