Oval|Lab Grown|IGI

1.72ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG468102478

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG468102478

Diamond specifications and retailer prices

From $770 AUD

$541 USD

As of October 29, 2026

13 retailers carry this diamond

Most expensive: $1,979 AUD at Brilliant Earth · As of October 15, 2026

View at Brilliant Earth

About this 1.72ct lab-grown oval diamond

This 1.72ct lab-grown oval 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 LG468102478 or 468102478. Listed at 13 retailers as of October 29, 2026. 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

1.72

Carat

Colour

SI1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle35.8°

Pavilion angle40.5°

OriginLab Grown

Grading LabIGI

CertificateIGI LG468102478

Dimensions9.50 × 6.71 × 4.25 mm

L/W Ratio1.42

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

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG468102478

Side View

Caratlytics Score

How it works →

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 29

Current: $1,979 AUD|Low: $545 AUD|High: $2,092 AUD|Avg: $1,190 AUD|-5.4%

Brilliant Earth

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

Retailer 9

Retailer 10

October 17, 2026

Retailer 9$545 AUD

Retailer 10$663 AUD

Retailer 5$713 AUD

Retailer 2$833 AUD

Retailer 8$884 AUD

Retailer 3$1,310 AUD

Retailer 6$1,495 AUD

Retailer 7$1,589 AUD

Retailer 4$1,815 AUD

Brilliant Earth$1,979 AUD

22 data points across 10 retailers

13 retailers

Retailer 1

$327 AUD

$230 USD

Price last confirmed 18 days ago

Retailer 2

$380 AUD

$267 USD

View

Price last confirmed 15 days ago

Retailer 3

$406 AUD

$285 USD

View

Price last confirmed 26 days ago

Retailer 4

$406 AUD

$285 USD

View

Price last confirmed 13 days ago

B+

Retailer 5

$545 AUD

$383 USD

View

Price last confirmed 13 days ago

Retailer 6

$663 AUD

$466 USD

View

Price last confirmed 12 days ago

Retailer 7

$770 AUD

$541 USD

View

Retailer 8

$833 AUD

£461 GBP

View

Price last confirmed 12 days ago

B+

Retailer 9

$1,310 AUD

$920 USD

View

Price last confirmed 13 days ago

Retailer 10

$1,440 AUD

$1,012 USD

View

Price last confirmed 21 days ago

Retailer 11

$1,495 AUD

$1,050 USD

View

Price last confirmed 14 days ago

Retailer 12

$1,815 AUD

£1,004 GBP

View

Price last confirmed 14 days ago

Most Expensive

Brilliant Earth

16513640A · Oct 15

$1,979 AUD

$1,390 USD

View

Price last confirmed 14 days ago

12 more retailers have this diamond

Prices start from $770 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.

Similar diamonds

1.72ct Oval

$770 AUD