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Oval|Lab Grown|IGI

1.80ct D SI2 Oval Lab Grown Diamond

GD • D/SI2 • IGI LG516238513

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG516238513

Diamond specifications and retailer prices

From $557 AUD
$391 USD
As of October 30, 2026
Save $1,180 AUD (68%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,737 AUD at Rare Carat · As of October 28, 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 D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade and certified by IGI LG516238513 or 516238513. Listed at 11 retailers as of October 28, 2026, with prices from $557 to $1,737, a $1,180 spread on the same certified stone. Rare Carat lists it at $1,737. 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
D
Colour
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG516238513
Dimensions9.64 × 6.88 × 4.33 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
9.64 mm6.88 mm1.80 ctD / SI2
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG516238513
Side View
Table 59.5%Crown 33.2°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,737 AUD|Low: $313 AUD|High: $1,772 AUD|Avg: $913 AUD|+1.8%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 6$313 AUD
Retailer 5$557 AUD
Retailer 2$563 AUD
Retailer 7$813 AUD
Retailer 8$948 AUD
Retailer 4$1,063 AUD
Retailer 3$1,473 AUD
Rare Carat$1,737 AUD

39 data points across 8 retailers

11 retailers$557 AUD to $1,737 AUD

Retailer 1
-
$242 AUD
$170 USD
Price last confirmed 28 days ago
Retailer 2
-
$293 AUD
$206 USD
View
Price last confirmed 34 days ago
Retailer 3
-
$313 AUD
$220 USD
View
Price last confirmed 27 days ago
B
Retailer 4
-
$557 AUD
$391 USD
View
B+
Retailer 5
-
$563 AUD
£311 GBP
View
B+
Retailer 6
-
$813 AUD
$571 USD
View
B+
Retailer 7
-
$948 AUD
HK$5,200 HKD
View
Retailer 8
-
$1,008 AUD
$708 USD
View
Price last confirmed 30 days ago
B
Retailer 9
-
$1,063 AUD
$747 USD
View
B
Retailer 10
-
$1,473 AUD
£815 GBP
View
Most Expensive
B
Rare Carat
516238513_l_516238513 · Oct 28
$1,737 AUD
$1,220 USD
View
10 more retailers have this diamond
Prices start from $557 AUDSave up to $1,180 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.

B+
1.80ct Oval
$557 AUD