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Round|Lab Grown|IGI

1.01ct E SI2 Round Lab Grown Diamond

EX • E/SI2 • IGI LG512220554

Shape and cutting style on the report: Round brilliant

Certificate IGI LG512220554

Diamond specifications and retailer prices

From $930 AUD
$653 USD
As of October 29, 2026
Save $829 AUD (47%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,032 AUD at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

About this 1.01ct lab-grown round diamond

This 1.01ct lab-grown round sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG512220554 or 512220554. Listed at 11 retailers as of October 29, 2026, with a 89% 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

1.01
Carat
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512220554
Dimensions6.41 × 6.38 × 3.98 mm
L/W Ratio1.00
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
6.41 mm6.38 mm1.01 ctE / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512220554
Side View
Table 57.0%Crown 34.1°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,718 AUD|Low: $680 AUD|High: $4,598 AUD|Avg: $1,651 AUD|+4.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 9$680 AUD
Retailer 4$930 AUD
Retailer 8$1,041 AUD
Retailer 6$1,079 AUD
Retailer 5$1,096 AUD
Retailer 1$1,718 AUD
Retailer 7$1,758 AUD
Retailer 3$2,755 AUD
Retailer 2$4,567 AUD

40 data points across 9 retailers

11 retailers$930 AUD to $1,758 AUD

B
Cheapest Retailer
-
$930 AUD
$653 USD
B
Retailer 2
-
$1,012 AUD
$711 USD
View
B
Retailer 3
-
$1,041 AUD
$731 USD
View
Final sale: no returns
Retailer 4
-
$1,079 AUD
$758 USD
View
Price last confirmed 15 days ago
B
Retailer 5
-
$1,079 AUD
$758 USD
View
B
Retailer 6
-
$1,096 AUD
$770 USD
View
B
Retailer 7
-
$1,718 AUD
£950 GBP
View
B
Retailer 8
-
$1,758 AUD
$1,235 USD
View
Retailer 9
-
$2,755 AUD
$1,935 USD
View
Price under review
Most Expensive
NZ Jewellers
2b6cd39f-7bfd-4dc7-9e52-491bf7a2bcd3 · Oct 31
$3,032 AUD
$2,130 USD
View
Price under review
9 more retailers have this diamond
Prices start from $930 AUDSave up to $829 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
1.01ct Round
$930 AUD