CaratHunter
Plans
Oval|Lab Grown|IGI

1.09ct H SI1 Oval Lab Grown Diamond

VG • H/SI1 • IGI LG436074457

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG436074457

Diamond specifications and retailer prices

From $620 USD
As of November 1, 2026
Save $2,411 USD (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,031 USD at MOH London · As of November 1, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG436074457 or 436074457. Listed at 12 retailers as of November 1, 2026, with prices from $620 to $3,031, a $2,411 spread on the same certified stone. MOH London lists it at $3,031. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.09
Carat
H
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle30.8°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436074457
Dimensions8.73 × 5.99 × 3.43 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizePointed
Cert comments
undefined
Top View
8.73 mm5.99 mm1.09 ctH / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436074457
Side View
Table 59.0%Crown 30.8°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 57.3%

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 1
Current: $3,031 USD|Low: $595 USD|High: $3,067 USD|Avg: $1,315 USD|-1.0%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 8$620 USD
Retailer 2$630 USD
Retailer 11$694 USD
Retailer 5$702 USD
Retailer 9$769 USD
Retailer 12$769 USD
Retailer 6$895 USD
Retailer 10$1,177 USD
Retailer 3$1,205 USD
Retailer 7$1,909 USD
Retailer 4$2,060 USD
Retailer 13$2,332 USD
MOH London$3,031 USD

21 data points across 13 retailers

12 retailers$620 USD to $3,031 USD

A
Cheapest Retailer
-
$620 USD
A
Retailer 2
-
$630 USD
View
A
Retailer 3
-
$694 USD
View
Final sale: no returns
A
Retailer 4
-
$695 USD
View
Retailer 5
-
$769 USD
View
Price last confirmed 16 days ago
B+
Retailer 6
-
$769 USD
View
A
Retailer 7
-
$895 USD
View
B+
Retailer 8
-
$1,177 USD
View
B
Retailer 9
-
$1,909 USD
View
B
Retailer 10
-
$2,023 USD
View
B
Retailer 11
-
$2,332 USD
View
Most Expensive
B
MOH London
LG436074457 · Nov 1
$3,031 USD
£2,387 GBP
View
11 more retailers have this diamond
Prices start from $620 USDSave up to $2,411 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
$620 USD