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Oval|Lab Grown|IGI

1.00ct I SI1 Oval Lab Grown Diamond

ID • I/SI1 • IGI LG450028009

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG450028009

Diamond specifications and retailer prices

From $826 AUD
$580 USD
As of October 31, 2026
Save $2,712 AUD (77%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,574 AUD at MOH London · As of October 25, 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 LG450028009 or 450028009. Listed at 11 retailers as of October 31, 2026, with a 328% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG450028009
Dimensions7.54 × 5.70 × 3.65 mm
L/W Ratio1.32
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD). Type IIa
Top View
7.54 mm5.70 mm1.00 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG450028009
Side View
Table 55.0%Crown 35.7°Girdle: MED-THKPavilion 41.5°Culet: NoneDepth 64.0%

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 31
Current: $5,574 AUD|Low: $826 AUD|High: $5,634 AUD|Avg: $2,770 AUD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 2$826 AUD
Retailer 4$1,415 AUD
Retailer 6$1,584 AUD
Retailer 7$1,893 AUD
Retailer 8$2,363 AUD
Retailer 5$2,622 AUD
Retailer 3$3,538 AUD
Retailer 9$4,701 AUD
MOH London$5,574 AUD

11 data points across 9 retailers

11 retailers$826 AUD to $3,538 AUD

A
Cheapest Retailer
-
$826 AUD
$580 USD
B+
Retailer 2
-
$1,415 AUD
$994 USD
View
B+
Retailer 3
-
$1,539 AUD
$1,081 USD
View
B+
Retailer 4
-
$1,584 AUD
$1,113 USD
View
Final sale: no returns
Retailer 5
-
$1,641 AUD
$1,153 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
$1,641 AUD
$1,153 USD
View
B
Retailer 7
-
$1,893 AUD
$1,330 USD
View
B
Retailer 8
-
$2,622 AUD
$1,842 USD
View
B
Retailer 9
-
$3,076 AUD
$2,161 USD
View
B
Retailer 10
-
$3,538 AUD
$2,485 USD
View
Most Expensive
MOH London
LG450028009 · Oct 25
$5,574 AUD
£3,083 GBP
View
Price last confirmed 7 days ago
10 more retailers have this diamond
Prices start from $826 AUDSave up to $2,712 AUD

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
$826 AUD