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Oval|Lab Grown|IGI

1.09ct E SI1 Oval Lab Grown Diamond

VG • E/SI1 • IGI LG850690105

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG850690105

Diamond specifications and retailer prices

From $230 USD
HK$1,800 HKD
As of October 29, 2026
Save $712 USD (76%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $942 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 E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG850690105 or 850690105. Listed at 6 retailers as of October 29, 2026, with prices from $230 to $942, a $712 spread on the same certified stone. MOH London lists it at $942. 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
E
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG850690105
Dimensions8.22 × 5.81 × 3.56 mm
L/W Ratio1.41
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.22 mm5.81 mm1.09 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG850690105
Side View
Table 63.0%Crown 36.2°Girdle: STK-THKPavilion 40.1°Culet: NoneDepth 61.3%

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: Oct 29
Current: $942 USD|Low: $230 USD|High: $942 USD|Avg: $427 USD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 6$230 USD
Retailer 4$334 USD
Retailer 2$354 USD
Retailer 5$362 USD
Retailer 3$485 USD
MOH London$942 USD

5 data points across 6 retailers

6 retailers$230 USD to $942 USD

A
Cheapest Retailer
-
$230 USD
HK$1,800 HKD
B+
Retailer 2
-
$334 USD
View
B+
Retailer 3
-
$354 USD
£278 GBP
View
B+
Retailer 4
-
$362 USD
View
B+
Retailer 5
-
$485 USD
View
Most Expensive
B
MOH London
LG850690105 · Oct 29
$942 USD
£742 GBP
View
5 more retailers have this diamond
Prices start from $230 USDSave up to $712 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
$230 USD