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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 $579 NZD
£256 GBP
As of October 29, 2026
Save $1,753 NZD (75%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $2,332 NZD 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 $579 to $2,332, a $1,753 spread on the same certified stone. Brilliant Earth lists it at $2,332. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $827 NZD|Low: $577 NZD|High: $2,114 NZD|Avg: $1,106 NZD|+3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 3$579 NZD
Retailer 5$778 NZD
Retailer 1$827 NZD
Retailer 6$1,027 NZD
Retailer 4$1,451 NZD
Retailer 2$2,114 NZD

7 data points across 6 retailers

7 retailers$579 NZD to $2,332 NZD

A
Cheapest Retailer
-
$579 NZD
£256 GBP
B+
Retailer 2
-
$778 NZD
$437 USD
View
A
Retailer 3
-
$827 NZD
£366 GBP
View
B+
Retailer 4
-
$1,027 NZD
$577 USD
View
B
Retailer 5
-
$1,451 NZD
$815 USD
View
B
Retailer 6
-
$2,114 NZD
£935 GBP
View
Most Expensive
B
Brilliant Earth
22257670A · Oct 29
$2,332 NZD
$1,310 USD
View
6 more retailers have this diamond
Prices start from $579 NZDSave up to $1,753 NZD

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
$579 NZD