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Round|Lab Grown|IGI

1.66ct F SI2 Round Lab Grown Diamond

ID • F/SI2 • IGI LG483102895

Shape and cutting style on the report: Round brilliant

Certificate IGI LG483102895

Diamond specifications and retailer prices

From $412 AUD
$289 USD
As of November 1, 2026
Save $1,635 AUD (80%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,048 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.66ct lab-grown round diamond

This 1.66ct 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 LG483102895 or 483102895. Listed at 15 retailers as of November 1, 2026, with prices from $412 to $2,048, a $1,635 spread on the same certified stone. MOH London lists it at $2,048. 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

1.66
Carat
F
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG483102895
Dimensions7.68 × 7.61 × 4.66 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.68 mm7.61 mm1.66 ctF / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG483102895
Side View
Table 58.5%Crown 34.2°Girdle: THN-MEDPavilion 40.9°Culet: NoneDepth 61.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $2,048 AUD|Low: $395 AUD|High: $2,071 AUD|Avg: $873 AUD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 9$412 AUD
Retailer 4$459 AUD
Retailer 13$478 AUD
Retailer 5$511 AUD
Retailer 10$511 AUD
Retailer 11$671 AUD
Retailer 2$824 AUD
Retailer 12$890 AUD
Retailer 6$893 AUD
Retailer 7$977 AUD
Retailer 8$1,570 AUD
Retailer 3$1,642 AUD
MOH London$2,048 AUD

44 data points across 13 retailers

15 retailers$412 AUD to $2,048 AUD

A
Cheapest Retailer
-
$412 AUD
$289 USD
A
Retailer 2
-
$459 AUD
$322 USD
View
Final sale: no returns
A
Retailer 3
-
$478 AUD
$335 USD
View
Retailer 4
-
$511 AUD
$358 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$511 AUD
$358 USD
View
A
Retailer 6
-
$566 AUD
HK$3,100 HKD
View
B+
Retailer 7
-
$671 AUD
$470 USD
View
A
Retailer 8
-
$824 AUD
€550 EUR
View
B+
Retailer 9
-
$890 AUD
$624 USD
View
B+
Retailer 10
-
$893 AUD
£493 GBP
View
Retailer 11
-
$977 AUD
$685 USD
View
Price last confirmed 12 days ago
B
Retailer 12
-
$1,435 AUD
$1,006 USD
View
B
Retailer 13
-
$1,570 AUD
$1,100 USD
View
B
Retailer 14
-
$1,642 AUD
$1,151 USD
View
Most Expensive
B
MOH London
LG483102895 · Nov 1
$2,048 AUD
£1,130 GBP
View
14 more retailers have this diamond
Prices start from $412 AUDSave up to $1,635 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
1.66ct Round
$412 AUD