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Oval|Lab Grown|IGI

18.19ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG584388837

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG584388837

Diamond specifications and retailer prices

From €3,764 EUR
£3,325 GBP
As of October 27, 2026
Save €21,342 EUR (85%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €25,107 EUR at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 18.19ct lab-grown oval diamond

This 18.19ct lab-grown oval sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG584388837 or 584388837. Listed at 12 retailers as of October 27, 2026, with prices from €3,764 to €25,107, a €21,342 spread on the same certified stone. Do Amore Diamonds lists it at €25,107. 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

18.19
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG584388837
Dimensions21.33 × 14.95 × 9.21 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
21.33 mm14.95 mm18.19 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG584388837
Side View
Table 61.0%Crown 35.4°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.6%

Caratlytics Score

How it works →
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 27
Current: €25,107 EUR|Low: €3,764 EUR|High: €73,903 EUR|Avg: €19,374 EUR
Do Amore Diamonds
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
Retailer 15
November 1, 2026
Retailer 12€3,764 EUR
Retailer 10€5,224 EUR
Retailer 2€6,566 EUR
Retailer 13€6,816 EUR
Retailer 11€6,846 EUR
Retailer 8€7,404 EUR
Retailer 6€8,536 EUR
Retailer 3€11,656 EUR
Retailer 4€12,794 EUR
Retailer 14€15,725 EUR
Retailer 9€20,363 EUR
Retailer 15€23,095 EUR
Do Amore Diamonds€25,107 EUR
Retailer 5€25,776 EUR
Retailer 7€73,903 EUR

9 data points across 15 retailers

12 retailers€3,764 EUR to €25,107 EUR

A
Cheapest Retailer
-
€3,764 EUR
£3,325 GBP
B+
Retailer 2
-
€5,224 EUR
$5,859 USD
View
B+
Retailer 3
-
€6,566 EUR
$7,365 USD
View
B+
Retailer 4
-
€6,816 EUR
$7,645 USD
View
B
Retailer 5
-
€6,846 EUR
$7,678 USD
View
B
Retailer 6
-
€7,404 EUR
£6,539 GBP
View
B
Retailer 7
-
€11,656 EUR
$13,074 USD
View
B
Retailer 8
-
€15,725 EUR
$17,637 USD
View
B
Retailer 9
-
€20,363 EUR
$22,839 USD
View
B
Retailer 10
-
€23,095 EUR
$25,903 USD
View
B
Retailer 11
-
€23,618 EUR
$26,490 USD
View
Most Expensive
B
Do Amore Diamonds
27-6BE5192AA · Oct 29
€25,107 EUR
$28,160 USD
View
11 more retailers have this diamond
Prices start from €3,764 EURSave up to €21,342 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
18.19ct Oval
€3,764 EUR