CaratHunter
Plans
Cushion|Lab Grown|IGI

3.05ct F SI1 Cushion Lab Grown Diamond

ID • F/SI1 • IGI LG809618099

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG809618099

Diamond specifications and retailer prices

From €360 EUR
As of November 4, 2026
Save €1,373 EUR (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €1,733 EUR at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 3.05ct lab-grown cushion diamond

This 3.05ct lab-grown cushion 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 LG809618099 or 809618099. Listed at 11 retailers as of November 1, 2026, with prices from €360 to €1,733, a €1,373 spread on the same certified stone. Rare Carat lists it at €1,733. 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

3.05
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG809618099
Dimensions9.73 × 7.12 × 4.78 mm
L/W Ratio1.37
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.73 mm7.12 mm3.05 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG809618099
Side View
Table 58.0%Crown 31.5°Girdle: STK-THKPavilion 34.7°Culet: NoneDepth 67.1%

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 4
Current: €1,733 EUR|Low: €360 EUR|High: €1,760 EUR|Avg: €956 EUR|-1.5%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3€360 EUR
Retailer 6€399 EUR
Retailer 5€605 EUR
Retailer 10€640 EUR
Retailer 2€712 EUR
Retailer 8€749 EUR
Retailer 7€914 EUR
Retailer 9€1,319 EUR
Retailer 11€1,524 EUR
Retailer 4€1,556 EUR
Rare Carat€1,733 EUR

43 data points across 11 retailers

11 retailers€360 EUR to €1,733 EUR

A
Cheapest Retailer
-
€360 EUR
Final sale: no returns
Retailer 2
-
€399 EUR
View
Price last confirmed 13 days ago
A
Retailer 3
-
€605 EUR
View
B+
Retailer 4
-
€640 EUR
View
A
Retailer 5
-
€712 EUR
View
A
Retailer 6
-
€749 EUR
View
A
Retailer 7
-
€914 EUR
View
B+
Retailer 8
-
€1,319 EUR
View
B
Retailer 9
-
€1,524 EUR
View
B+
Retailer 10
-
€1,556 EUR
View
Most Expensive
B+
Rare Carat
K08-51A_l_809618099 · Nov 1
€1,733 EUR
$1,935 USD
View
10 more retailers have this diamond
Prices start from €360 EURSave up to €1,373 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
3.05ct Cushion
€360 EUR