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Round|Lab Grown|IGI

1.45ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG817643581

Shape and cutting style on the report: Round brilliant

Certificate IGI LG817643581

Diamond specifications and retailer prices

From $279 AUD
$196 USD
As of October 30, 2026
Save $294 AUD (51%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $833 AUD at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.45ct lab-grown round diamond

This 1.45ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG817643581 or 817643581. Listed at 4 retailers as of October 30, 2026, with a 106% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.45
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817643581
Dimensions7.26 × 7.28 × 4.46 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.26 mm7.28 mm1.45 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817643581
Side View
Table 60.0%Crown 33.6°Girdle: MED-STKPavilion 41.5°Culet: NoneDepth 61.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $833 AUD|Low: $279 AUD|High: $1,095 AUD|Avg: $688 AUD|-1.7%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 3$279 AUD
Retailer 5$524 AUD
Retailer 4$531 AUD
Retailer 2$573 AUD
Rare Carat$833 AUD
Retailer 6$1,095 AUD

37 data points across 6 retailers

4 retailers$279 AUD to $573 AUD

A
Cheapest Retailer
-
$279 AUD
$196 USD
Final sale: no returns
Retailer 2
-
$531 AUD
ZAR 6,029 ZAR
View
Price last confirmed 44 days ago
A
Retailer 3
-
$573 AUD
£317 GBP
View
Most Expensive
Rare Carat
817643581 · Oct 21
$833 AUD
$585 USD
View
Price last confirmed 9 days ago
3 more retailers have this diamond
Prices start from $279 AUDSave up to $294 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
1.45ct Round
$279 AUD