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Oval|Lab Grown|IGI

1.83ct E SI1 Oval Lab Grown Diamond

ID • E/SI1 • IGI LG514270728

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG514270728

Diamond specifications and retailer prices

From €236 EUR
$263 USD
As of October 28, 2026
Save €1,255 EUR (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €1,491 EUR at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.83ct lab-grown oval diamond

This 1.83ct 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 top-tier cut grade and certified by IGI LG514270728 or 514270728. Listed at 18 retailers as of October 28, 2026, with prices from €236 to €1,491, a €1,255 spread on the same certified stone. Brilliant Earth lists it at €1,491. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.83
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG514270728
Dimensions9.77 × 6.91 × 4.33 mm
L/W Ratio1.41
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
9.77 mm6.91 mm1.83 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG514270728
Side View
Table 57.0%Crown 35.8°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.7%

Caratlytics Score

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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: €1,491 EUR|Low: €265 EUR|High: €1,536 EUR|Avg: €729 EUR|-2.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 8€265 EUR
Retailer 4€436 EUR
Retailer 5€483 EUR
Retailer 7€489 EUR
Retailer 9€541 EUR
Retailer 3€558 EUR
Retailer 6€901 EUR
Retailer 10€945 EUR
Retailer 2€1,181 EUR
Brilliant Earth€1,491 EUR

42 data points across 10 retailers

18 retailers€236 EUR to €1,491 EUR

A
Cheapest Retailer
-
€236 EUR
$263 USD
A
Retailer 2
-
€265 EUR
$295 USD
View
Final sale: no returns
A
Retailer 3
-
€274 EUR
$305 USD
View
A
Retailer 4
-
€293 EUR
$326 USD
View
A
Retailer 5
-
€293 EUR
$326 USD
View
A
Retailer 6
-
€322 EUR
HK$2,800 HKD
View
A
Retailer 7
-
€436 EUR
$485 USD
View
A
Retailer 8
-
€483 EUR
View
B+
Retailer 9
-
€489 EUR
$544 USD
View
B+
Retailer 10
-
€541 EUR
$602 USD
View
A
Retailer 11
-
€558 EUR
£490 GBP
View
B+
Retailer 12
-
€584 EUR
$650 USD
View
B
Retailer 13
-
€901 EUR
$1,003 USD
View
B
Retailer 14
-
€942 EUR
$1,049 USD
View
B
Retailer 15
-
€945 EUR
SGD 1,422 SGD
View
B
Retailer 16
-
€978 EUR
$1,089 USD
View
Price last confirmed 72 days ago
B
Retailer 17
-
€1,181 EUR
£1,035 GBP
View
Most Expensive
B
Brilliant Earth
19055812A · Oct 28
€1,491 EUR
$1,660 USD
View
17 more retailers have this diamond
Prices start from €236 EURSave up to €1,255 EUR

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
1.83ct Oval
€236 EUR