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Radiant|Lab Grown|IGI

1.70ct E SI1 Radiant Lab Grown Diamond

EX • E/SI1 • IGI LG502139892

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG502139892

Diamond specifications and retailer prices

From $3,828 AUD
$2,689 USD
As of October 29, 2026
1 retailer carries this diamond
Only listing: $3,828 AUD at B2C Jewels
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at B2C Jewels

About this 1.7ct lab-grown radiant diamond

This 1.7ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG502139892 or 502139892. Listed at a single retailer as of October 29, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle49°
Pavilion angle30.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG502139892
Dimensions7.52 × 5.94 mm
L/W Ratio1.27
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
7.52 mm5.94 mm1.70 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG502139892
Side View
Table 61.5%Crown 49°Girdle: Slightly ThickPavilion 30.2°Culet: NoneDepth 69.5%

Caratlytics Score

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C
Average
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Price History

Last verified: Oct 29
Current: $3,828 AUD|Low: $3,652 AUD|High: $6,207 AUD|Avg: $4,611 AUD|-38.3%
September 23, 2026
B2C Jewels$3,828 AUD

4 data points across 1 retailer

1 retailer

C
B2C Jewels
20034561 · Oct 29
$3,828 AUD
$2,689 USD
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C
1.70ct Radiant
$3,828 AUD