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Radiant|Lab Grown|IGI

1.70ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG726542816

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

Certificate IGI LG726542816

Diamond specifications and retailer prices

From $444 AUD
$312 USD
As of October 28, 2026
Save $4,438 AUD (91%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,882 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG726542816 or 726542816. Listed at 10 retailers as of October 28, 2026, with prices from $444 to $4,882, a $4,438 spread on the same certified stone. Brilliant Earth lists it at $4,882. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.70
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.6°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG726542816
Dimensions8.46 × 5.96 × 3.91 mm
L/W Ratio1.42
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
8.46 mm5.96 mm1.70 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG726542816
Side View
Table 64.0%Crown 42.6°Girdle: MED-STKPavilion 34.5°Culet: NoneDepth 65.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $4,882 AUD|Low: $444 AUD|High: $4,882 AUD|Avg: $1,913 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 6$444 AUD
Retailer 4$747 AUD
Retailer 5$795 AUD
Retailer 2$867 AUD
Retailer 7$1,589 AUD
Retailer 8$1,734 AUD
Retailer 10$1,828 AUD
Retailer 3$1,988 AUD
Retailer 9$3,793 AUD
Brilliant Earth$4,882 AUD

42 data points across 10 retailers

10 retailers$444 AUD to $4,882 AUD

A
Cheapest Retailer
-
$444 AUD
$312 USD
Final sale: no returns
A
Retailer 2
-
$747 AUD
$525 USD
View
A
Retailer 3
-
$795 AUD
€532 EUR
View
A
Retailer 4
-
$867 AUD
£480 GBP
View
A
Retailer 5
-
$1,589 AUD
SGD 1,509 SGD
View
B+
Retailer 6
-
$1,734 AUD
$1,218 USD
View
B+
Retailer 7
-
$1,828 AUD
$1,284 USD
View
B+
Retailer 8
-
$1,988 AUD
£1,100 GBP
View
Retailer 9
-
$3,793 AUD
$2,665 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Brilliant Earth
15975265A · Oct 29
$4,882 AUD
$3,430 USD
View
9 more retailers have this diamond
Prices start from $444 AUDSave up to $4,438 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 Radiant
$444 AUD