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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 €235 EUR
$263 USD
As of October 29, 2026
Save €1,250 EUR (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €1,486 EUR at Brilliant Earth · As of October 31, 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 29, 2026, with prices from €235 to €1,486, a €1,250 spread on the same certified stone. Brilliant Earth lists it at €1,486. 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
Color
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 29
Current: €1,486 EUR|Low: €226 EUR|High: €1,531 EUR|Avg: €585 EUR|-2.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 11€235 EUR
Retailer 4€264 EUR
Retailer 3€273 EUR
Retailer 6€292 EUR
Retailer 12€292 EUR
Retailer 8€434 EUR
Retailer 9€481 EUR
Retailer 13€487 EUR
Retailer 5€539 EUR
Retailer 2€554 EUR
Retailer 10€898 EUR
Retailer 14€939 EUR
Retailer 7€1,177 EUR
Brilliant Earth€1,486 EUR

45 data points across 14 retailers

18 retailers€235 EUR to €1,486 EUR

A
Cheapest Retailer
-
€235 EUR
$263 USD
A
Retailer 2
-
€264 EUR
$295 USD
View
Final sale: no returns
A
Retailer 3
-
€273 EUR
$305 USD
View
A
Retailer 4
-
€292 EUR
$326 USD
View
Retailer 5
-
€292 EUR
$326 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
€321 EUR
HK$2,800 HKD
View
A
Retailer 7
-
€434 EUR
$485 USD
View
A
Retailer 8
-
€481 EUR
View
B+
Retailer 9
-
€487 EUR
$544 USD
View
B+
Retailer 10
-
€539 EUR
$602 USD
View
A
Retailer 11
-
€554 EUR
£488 GBP
View
B+
Retailer 12
-
€582 EUR
$650 USD
View
B
Retailer 13
-
€898 EUR
$1,003 USD
View
B
Retailer 14
-
€939 EUR
$1,049 USD
View
B
Retailer 15
-
€942 EUR
SGD 1,422 SGD
View
Retailer 16
-
€975 EUR
$1,089 USD
View
Price last confirmed 75 days ago
B
Retailer 17
-
€1,177 EUR
£1,035 GBP
View
Most Expensive
B
Brilliant Earth
19055812A · Oct 31
€1,486 EUR
$1,660 USD
View
17 more retailers have this diamond
Prices start from €235 EURSave up to €1,250 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
€235 EUR