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Oval|Lab Grown|IGI

12.05ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG560216123

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG560216123

Diamond specifications and retailer prices

From €1,742 EUR
£1,533 GBP
As of October 27, 2026
Save €13,814 EUR (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €15,557 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 12.05ct lab-grown oval diamond

This 12.05ct 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 LG560216123 or 560216123. Listed at 11 retailers as of October 27, 2026, with prices from €1,742 to €15,557, a €13,814 spread on the same certified stone. Brilliant Earth lists it at €15,557. 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

12.05
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG560216123
Dimensions18.33 × 12.92 × 8.19 mm
L/W Ratio1.42
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
18.33 mm12.92 mm12.05 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG560216123
Side View
Table 59.5%Crown 35.8°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 63.4%

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: €16,890 EUR|Low: €1,742 EUR|High: €19,227 EUR|Avg: €7,490 EUR
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
Retailer 15
Retailer 16
November 1, 2026
Retailer 14€1,742 EUR
Retailer 10€2,455 EUR
Retailer 15€3,093 EUR
Retailer 7€3,380 EUR
Retailer 9€3,630 EUR
Retailer 11€3,725 EUR
Retailer 6€3,735 EUR
Retailer 5€4,457 EUR
Retailer 2€5,169 EUR
Retailer 4€5,401 EUR
Retailer 16€6,953 EUR
Retailer 12€9,453 EUR
Retailer 3€10,440 EUR
Retailer 13€11,618 EUR
Brilliant Earth€16,890 EUR
Retailer 8€19,227 EUR

11 data points across 16 retailers

11 retailers€1,742 EUR to €15,557 EUR

A
Cheapest Retailer
-
€1,742 EUR
£1,533 GBP
A
Retailer 2
-
€2,455 EUR
$2,743 USD
View
B+
Retailer 3
-
€3,093 EUR
$3,455 USD
View
B
Retailer 4
-
€3,630 EUR
£3,193 GBP
View
B
Retailer 5
-
€3,725 EUR
$4,162 USD
View
B
Retailer 6
-
€5,401 EUR
$6,034 USD
View
B
Retailer 7
-
€6,953 EUR
$7,768 USD
View
B
Retailer 8
-
€9,453 EUR
$10,561 USD
View
B
Retailer 9
-
€10,440 EUR
$11,664 USD
View
B
Retailer 10
-
€11,618 EUR
$12,980 USD
View
Most Expensive
B
Brilliant Earth
22301436A · Oct 31
€15,557 EUR
$17,380 USD
View
10 more retailers have this diamond
Prices start from €1,742 EURSave up to €13,814 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
12.05ct Oval
€1,742 EUR