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Oval|Lab Grown|IGI

1.74ct E SI1 Oval Lab Grown Diamond

VG • E/SI1 • IGI LG823657837

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG823657837

Diamond specifications and retailer prices

From $463 AUD
£256 GBP
As of October 29, 2026
Save $1,401 AUD (75%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,865 AUD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.74ct lab-grown oval diamond

This 1.74ct 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 very-good cut grade and certified by IGI LG823657837 or 823657837. Listed at 7 retailers as of October 29, 2026, with prices from $463 to $1,865, a $1,401 spread on the same certified stone. Brilliant Earth lists it at $1,865. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.74
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle41.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823657837
Dimensions9.13 × 7.02 × 4.35 mm
L/W Ratio1.30
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.13 mm7.02 mm1.74 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823657837
Side View
Table 60.0%Crown 34.2°Girdle: MediumPavilion 41.4°Culet: NoneDepth 62.0%

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: Oct 29
Current: $659 AUD|Low: $461 AUD|High: $1,690 AUD|Avg: $881 AUD|+3.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 3$463 AUD
Retailer 5$622 AUD
Retailer 1$659 AUD
Retailer 6$821 AUD
Retailer 4$1,160 AUD
Retailer 2$1,690 AUD

6 data points across 6 retailers

7 retailers$463 AUD to $1,865 AUD

A
Cheapest Retailer
-
$463 AUD
£256 GBP
B+
Retailer 2
-
$622 AUD
$437 USD
View
A
Retailer 3
-
$659 AUD
£365 GBP
View
B+
Retailer 4
-
$821 AUD
$577 USD
View
B
Retailer 5
-
$1,160 AUD
$815 USD
View
B
Retailer 6
-
$1,690 AUD
£935 GBP
View
Most Expensive
B
Brilliant Earth
22257670A · Oct 29
$1,865 AUD
$1,310 USD
View
6 more retailers have this diamond
Prices start from $463 AUDSave up to $1,401 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
1.74ct Oval
$463 AUD