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Round|Lab Grown|IGI

3.68ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG652421218

Shape and cutting style on the report: Round brilliant

Certificate IGI LG652421218

Diamond specifications and retailer prices

From €368 EUR
$413 USD
As of October 26, 2026
Save €2,904 EUR (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €5,136 EUR at Jared · As of October 28, 2026
View at Jared

About this 3.68ct lab-grown round diamond

This 3.68ct lab-grown round sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG652421218 or 652421218. Listed at 11 retailers as of October 26, 2026, with a 789% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.68
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG652421218
Dimensions9.86 × 9.90 × 6.07 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.86 mm9.90 mm3.68 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG652421218
Side View
Table 59.0%Crown 34.7°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 61.5%

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 26
Current: €1,860 EUR|Low: €301 EUR|High: €3,352 EUR|Avg: €1,329 EUR|-1.9%
Retailer 1
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
October 29, 2026
Retailer 14€368 EUR
Retailer 8€412 EUR
Retailer 2€423 EUR
Retailer 9€702 EUR
Retailer 12€720 EUR
Retailer 7€722 EUR
Retailer 4€864 EUR
Retailer 5€931 EUR
Retailer 3€960 EUR
Retailer 10€1,280 EUR
Retailer 11€1,620 EUR
Retailer 1€1,860 EUR
Retailer 6€3,103 EUR
Retailer 13€3,272 EUR

34 data points across 14 retailers

11 retailers€368 EUR to €3,272 EUR

A
Cheapest Retailer
-
€368 EUR
$413 USD
A
Retailer 2
-
€412 EUR
$462 USD
View
Retailer 3
-
€702 EUR
£620 GBP
View
Price last confirmed 9 days ago
B+
Retailer 4
-
€720 EUR
$808 USD
View
A
Retailer 5
-
€722 EUR
$810 USD
View
Retailer 6
-
€1,280 EUR
$1,436 USD
View
Price last confirmed 7 days ago
B+
Retailer 7
-
€1,620 EUR
$1,817 USD
View
B+
Retailer 8
-
€1,860 EUR
£1,643 GBP
View
B
Retailer 9
-
€3,103 EUR
$3,480 USD
View
B
Retailer 10
-
€3,272 EUR
$3,670 USD
View
Most Expensive
Jared
152540144 · Oct 28
€5,136 EUR
$5,760 USD
View
Price under review
10 more retailers have this diamond
Prices start from €368 EURSave up to €2,904 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
3.68ct Round
€368 EUR