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Oval|Lab Grown|IGI

1.00ct G SI1 Oval Lab Grown Diamond

ID • G/SI1 • IGI LG508156211

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG508156211

Diamond specifications and retailer prices

From $876 AUD
As of November 5, 2026
Save $1,818 AUD (67%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,855 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 LG508156211 or 508156211. Listed at 12 retailers as of November 4, 2026, with a 207% 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
SymmetryVery Good
FluorescenceNone
Crown angle41.3°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG508156211
Dimensions7.89 × 5.45 × 3.42 mm
L/W Ratio1.45
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
7.89 mm5.45 mm1.00 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG508156211
Side View
Table 59.5%Crown 41.3°Girdle: MED-STKPavilion 37.8°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $1,681 AUD|Low: $876 AUD|High: $4,769 AUD|Avg: $1,887 AUD|+1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6$876 AUD
Retailer 8$979 AUD
Retailer 3$1,223 AUD
Retailer 4$1,273 AUD
Retailer 7$1,665 AUD
Retailer 1$1,681 AUD
Retailer 5$2,694 AUD
Retailer 2$4,699 AUD

42 data points across 8 retailers

12 retailers$876 AUD to $2,694 AUD

B+
Cheapest Retailer
-
$876 AUD
B+
Retailer 2
-
$979 AUD
View
Final sale: no returns
B+
Retailer 3
-
$981 AUD
View
Retailer 4
-
$1,086 AUD
View
Price last confirmed 21 days ago
B
Retailer 5
-
$1,086 AUD
View
B
Retailer 6
-
$1,223 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
Most Expensive
NZ Jewellers
e73373b2-4bad-45ae-a88d-4df4b7d2da15 · Nov 5
$2,855 AUD
$1,962 USD
View
Price under review
10 more retailers have this diamond
Prices start from $876 AUDSave up to $1,818 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.

B+
1.00ct Oval
$876 AUD