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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 £292 GBP
$391 USD
As of October 30, 2026
Save £619 GBP (68%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £911 GBP 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 £292 to £911, a £619 spread on the same certified stone. Rare Carat lists it at £911. 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £911 GBP|Low: £164 GBP|High: £929 GBP|Avg: £479 GBP|+1.8%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 6£164 GBP
Retailer 5£292 GBP
Retailer 2£295 GBP
Retailer 7£426 GBP
Retailer 8£497 GBP
Retailer 4£558 GBP
Retailer 3£772 GBP
Rare Carat£911 GBP

39 data points across 8 retailers

11 retailers£292 GBP to £911 GBP

Retailer 1
-
£127 GBP
$170 USD
Price last confirmed 29 days ago
Retailer 2
-
£154 GBP
$206 USD
View
Price last confirmed 34 days ago
Retailer 3
-
£164 GBP
$220 USD
View
Price last confirmed 28 days ago
B
Retailer 4
-
£292 GBP
$391 USD
View
B+
Retailer 5
-
£295 GBP
View
B+
Retailer 6
-
£426 GBP
$571 USD
View
B+
Retailer 7
-
£497 GBP
HK$5,200 HKD
View
Retailer 8
-
£528 GBP
$708 USD
View
Price last confirmed 30 days ago
B
Retailer 9
-
£558 GBP
$747 USD
View
B
Retailer 10
-
£772 GBP
View
Most Expensive
B
Rare Carat
516238513_l_516238513 · Oct 28
£911 GBP
$1,220 USD
View
10 more retailers have this diamond
Prices start from £292 GBPSave up to £619 GBP

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
£292 GBP