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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 $739 NZD
$415 USD
As of October 28, 2026
Save $1,255 NZD (63%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,270 NZD 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 28
Current: $1,994 NZD|Low: $694 NZD|High: $2,189 NZD|Avg: $1,328 NZD|-8.9%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 28, 2026
Retailer 5$739 NZD
Retailer 2$763 NZD
Retailer 6$1,081 NZD
Retailer 4$1,360 NZD
Retailer 8$1,367 NZD
Retailer 7$1,452 NZD
Retailer 3$1,974 NZD
Rare Carat$1,994 NZD

39 data points across 8 retailers

10 retailers$739 NZD to $1,994 NZD

B+
Cheapest Retailer
-
$739 NZD
$415 USD
A
Retailer 2
-
$763 NZD
£337 GBP
View
B+
Retailer 3
-
$1,081 NZD
$607 USD
View
B
Retailer 4
-
$1,357 NZD
$762 USD
View
Price last confirmed 29 days ago
B
Retailer 5
-
$1,360 NZD
$764 USD
View
B
Retailer 6
-
$1,367 NZD
HK$6,000 HKD
View
B
Retailer 7
-
$1,452 NZD
$815 USD
View
B
Retailer 8
-
$1,974 NZD
£873 GBP
View
B
Retailer 9
-
$1,994 NZD
$1,120 USD
View
Most Expensive
B
Rare Carat
KKV1301 · Sep 6
$2,270 NZD
$1,275 USD
View
Price last confirmed 10 days ago
9 more retailers have this diamond
Prices start from $739 NZDSave up to $1,255 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
1.80ct Oval
$739 NZD