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Oval|Lab Grown|IGI

1.80ct E SI1 Oval Lab Grown Diamond

GD • E/SI1 • IGI LG522252568

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG522252568

Diamond specifications and retailer prices

From $591 AUD
$415 USD
As of October 28, 2026
Save $1,003 AUD (63%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,815 AUD at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 1.8ct lab-grown oval diamond

This 1.8ct 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 standard cut grade and certified by IGI LG522252568 or 522252568. Listed at 10 retailers as of October 28, 2026, with a 170% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.80
Carat
E
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG522252568
Dimensions9.62 × 6.88 × 4.31 mm
L/W Ratio1.40
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
Top View
9.62 mm6.88 mm1.80 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG522252568
Side View
Table 59.0%Crown 36°Girdle: MED-THKPavilion 40.4°Culet: NoneDepth 62.6%

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 28
Current: $1,594 AUD|Low: $555 AUD|High: $1,750 AUD|Avg: $1,062 AUD|-8.9%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 28, 2026
Retailer 5$591 AUD
Retailer 2$610 AUD
Retailer 6$864 AUD
Retailer 4$1,087 AUD
Retailer 8$1,093 AUD
Retailer 7$1,161 AUD
Retailer 3$1,578 AUD
Rare Carat$1,594 AUD

39 data points across 8 retailers

10 retailers$591 AUD to $1,594 AUD

B+
Cheapest Retailer
-
$591 AUD
$415 USD
A
Retailer 2
-
$610 AUD
£337 GBP
View
B+
Retailer 3
-
$864 AUD
$607 USD
View
B
Retailer 4
-
$1,085 AUD
$762 USD
View
Price last confirmed 29 days ago
B
Retailer 5
-
$1,087 AUD
$764 USD
View
B
Retailer 6
-
$1,093 AUD
HK$6,000 HKD
View
B
Retailer 7
-
$1,161 AUD
$815 USD
View
B
Retailer 8
-
$1,578 AUD
£873 GBP
View
B
Retailer 9
-
$1,594 AUD
$1,120 USD
View
Most Expensive
B
Rare Carat
KKV1301 · Sep 6
$1,815 AUD
$1,275 USD
View
Price last confirmed 10 days ago
9 more retailers have this diamond
Prices start from $591 AUDSave up to $1,003 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
1.80ct Oval
$591 AUD