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Round|Lab Grown|IGI

1.65ct F SI2 Round Lab Grown Diamond

ID • F/SI2 • IGI LG660459210

Certificate IGI LG660459210

Diamond specifications and retailer prices

From $1,822 AUD
$1,280 USD
As of October 30, 2026
Save $1,167 AUD (39%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $2,990 AUD at Jared · As of October 30, 2026
View at Jared

About this 1.65ct lab-grown round diamond

This 1.65ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG660459210 or 660459210. Listed at 3 retailers as of October 30, 2026, with prices from $1,822 to $2,990, a $1,167 spread on the same certified stone. Jared lists it at $2,990. 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

1.65
Carat
F
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG660459210
Dimensions7.53 × 7.57 mm
L/W Ratio1.01
Top View
7.53 mm7.57 mm1.65 ctF / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660459210
Side View
Table 57.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: $2,990 AUD|Low: $1,794 AUD|High: $2,990 AUD|Avg: $2,253 AUD
Jared
Retailer 2
Retailer 3
July 10, 2026
Retailer 2$1,822 AUD
Retailer 3$1,822 AUD
Jared$2,990 AUD

9 data points across 3 retailers

3 retailers$1,822 AUD to $2,990 AUD

B
Cheapest Retailer
-
$1,822 AUD
$1,280 USD
B
Retailer 2
-
$1,822 AUD
$1,280 USD
View
Most Expensive
B
Jared
154541431 · Oct 30
$2,990 AUD
$2,100 USD
View
2 more retailers have this diamond
Prices start from $1,822 AUDSave up to $1,167 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
1.65ct Round
$1,822 AUD