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Round|Lab Grown|IGI

12.03ct F VS1 Round Lab Grown Diamond

ID • F/VS1 • IGI LG658495639

Shape and cutting style on the report: Round brilliant

Certificate IGI LG658495639

Diamond specifications and retailer prices

From €3,642 EUR
$4,069 USD
As of November 1, 2026
Save €8,059 EUR (69%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €11,701 EUR at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 12.03ct lab-grown round diamond

This 12.03ct lab-grown round sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG658495639 or 658495639. Listed at 7 retailers as of October 31, 2026, with prices from €3,642 to €11,701, a €8,059 spread on the same certified stone. Taylor and Hart lists it at €11,701. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

12.03
Carat
F
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG658495639
Dimensions14.80 × 14.74 × 8.96 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
14.80 mm14.74 mm12.03 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG658495639
Side View
Table 59.0%Crown 35.3°Girdle: MediumPavilion 40.5°Culet: NoneDepth 60.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €4,431 EUR|Low: €3,513 EUR|High: €11,701 EUR|Avg: €6,447 EUR|+2.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Taylor and Hart
November 1, 2026
Retailer 4€3,642 EUR
Retailer 1€4,431 EUR
Retailer 5€5,195 EUR
Retailer 2€5,677 EUR
Retailer 3€5,679 EUR
Retailer 6€8,572 EUR
Taylor and Hart€11,701 EUR

24 data points across 7 retailers

7 retailers€3,642 EUR to €11,701 EUR

A
Cheapest Retailer
-
€3,642 EUR
$4,069 USD
A
Retailer 2
-
€4,431 EUR
£3,898 GBP
View
B+
Retailer 3
-
€5,195 EUR
$5,804 USD
View
B+
Retailer 4
-
€5,677 EUR
View
Retailer 5
-
€5,679 EUR
$6,345 USD
View
Price last confirmed 14 days ago
B
Retailer 6
-
€8,572 EUR
$9,577 USD
View
Most Expensive
B
Taylor and Hart
SMI3ON0 · Oct 31
€11,701 EUR
$13,072 USD
View
6 more retailers have this diamond
Prices start from €3,642 EURSave up to €8,059 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
12.03ct Round
€3,642 EUR