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Oval|Lab Grown|IGI

1.00ct G SI1 Oval Lab Grown Diamond

ID • G/SI1 • IGI LG512220518

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG512220518

Diamond specifications and retailer prices

From $742 AUD
As of November 6, 2026
Save $1,952 AUD (72%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,317 AUD at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1ct lab-grown oval diamond

This 1ct lab-grown oval sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG512220518 or 512220518. Listed at 13 retailers as of November 4, 2026, with a 263% 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
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512220518
Dimensions8.35 × 5.41 × 3.47 mm
L/W Ratio1.54
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.35 mm5.41 mm1.00 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512220518
Side View
Table 57.0%Crown 36.9°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 64.1%

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: $1,681 AUD|Low: $742 AUD|High: $4,769 AUD|Avg: $1,705 AUD|+1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 4$742 AUD
Retailer 7$876 AUD
Retailer 10$979 AUD
Retailer 2$1,086 AUD
Retailer 8$1,086 AUD
Retailer 5$1,273 AUD
Retailer 9$1,665 AUD
Retailer 1$1,681 AUD
Retailer 6$2,694 AUD
Retailer 3$4,713 AUD

44 data points across 10 retailers

13 retailers$742 AUD to $2,694 AUD

A
Cheapest Retailer
-
$742 AUD
B+
Retailer 2
-
$876 AUD
View
B
Retailer 3
-
$979 AUD
View
Final sale: no returns
B
Retailer 4
-
$981 AUD
View
Retailer 5
-
$1,086 AUD
View
Price last confirmed 21 days ago
B+
Retailer 6
-
$1,086 AUD
View
B
Retailer 7
-
$1,273 AUD
View
B
Retailer 8
-
$1,665 AUD
View
B
Retailer 9
-
$1,681 AUD
View
B
Retailer 10
-
$2,694 AUD
View
Retailer 11
-
$2,855 AUD
View
Price under review
Most Expensive
Reve Diamonds
4058D2BF4 · Nov 6
$3,317 AUD
$2,279 USD
View
Price under review
11 more retailers have this diamond
Prices start from $742 AUDSave up to $1,952 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
$742 AUD