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Round|Lab Grown|IGI

1.70ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG757539546

Shape and cutting style on the report: Round brilliant

Certificate IGI LG757539546

Diamond specifications and retailer prices

From $518 AUD
$363 USD
As of November 1, 2026
Save $1,204 AUD (70%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,722 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 1.7ct lab-grown round diamond

This 1.7ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG757539546 or 757539546. Listed at 8 retailers as of October 29, 2026, with prices from $518 to $1,722, a $1,204 spread on the same certified stone. MOH London lists it at $1,722. 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

1.70
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG757539546
Dimensions7.71 × 7.67 × 4.68 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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
7.71 mm7.67 mm1.70 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG757539546
Side View
Table 55.0%Crown 32.9°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 60.8%

Caratlytics Score

How it works →
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: $1,722 AUD|Low: $518 AUD|High: $1,732 AUD|Avg: $963 AUD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 4$518 AUD
Retailer 8$566 AUD
Retailer 7$582 AUD
Retailer 5$761 AUD
Retailer 2$808 AUD
Retailer 3$1,170 AUD
Retailer 6$1,617 AUD
MOH London$1,722 AUD

34 data points across 8 retailers

8 retailers$518 AUD to $1,722 AUD

B+
Cheapest Retailer
-
$518 AUD
$363 USD
Retailer 2
-
$566 AUD
HK$3,100 HKD
View
Price last confirmed 59 days ago
A
Retailer 3
-
$582 AUD
$408 USD
View
A
Retailer 4
-
$761 AUD
$533 USD
View
A
Retailer 5
-
$808 AUD
£446 GBP
View
Retailer 6
-
$1,170 AUD
$820 USD
View
Price last confirmed 12 days ago
B
Retailer 7
-
$1,617 AUD
$1,134 USD
View
Most Expensive
B
MOH London
LG757539546 · Oct 29
$1,722 AUD
£950 GBP
View
7 more retailers have this diamond
Prices start from $518 AUDSave up to $1,204 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
1.70ct Round
$518 AUD