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Round|Lab Grown|IGI

4.28ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG695521718

Shape and cutting style on the report: Round brilliant

Certificate IGI LG695521718

Diamond specifications and retailer prices

From €525 EUR
$587 USD
As of October 29, 2026
Save €4,138 EUR (89%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: €4,663 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.28ct lab-grown round diamond

This 4.28ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG695521718 or 695521718. Listed at 10 retailers as of October 29, 2026, with prices from €525 to €4,663, a €4,138 spread on the same certified stone. Do Amore Diamonds lists it at €4,663. 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

4.28
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG695521718
Dimensions10.38 × 10.34 × 6.40 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
10.38 mm10.34 mm4.28 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG695521718
Side View
Table 59.0%Crown 35.8°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.8%

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: Oct 29
Current: €4,663 EUR|Low: €450 EUR|High: €4,950 EUR|Avg: €1,906 EUR|-5.8%
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
October 31, 2026
Retailer 11€525 EUR
Retailer 6€589 EUR
Retailer 13€589 EUR
Retailer 12€1,002 EUR
Retailer 7€1,003 EUR
Retailer 5€1,142 EUR
Retailer 10€1,617 EUR
Retailer 4€1,676 EUR
Retailer 2€1,873 EUR
Retailer 3€1,964 EUR
Retailer 8€2,839 EUR
Retailer 9€3,782 EUR
Do Amore Diamonds€4,663 EUR

24 data points across 13 retailers

10 retailers€525 EUR to €4,663 EUR

A
Cheapest Retailer
-
€525 EUR
$587 USD
A
Retailer 2
-
€589 EUR
$658 USD
View
Final sale: no returns
A
Retailer 3
-
€589 EUR
$658 USD
View
B+
Retailer 4
-
€1,002 EUR
$1,119 USD
View
A
Retailer 5
-
€1,003 EUR
$1,120 USD
View
B+
Retailer 6
-
€1,617 EUR
$1,807 USD
View
B
Retailer 7
-
€1,873 EUR
$2,093 USD
View
B
Retailer 8
-
€2,839 EUR
£2,497 GBP
View
Retailer 9
-
€3,782 EUR
$4,225 USD
View
Price last confirmed 11 days ago
Most Expensive
B
Do Amore Diamonds
27-7DE0CFD85 · Oct 31
€4,663 EUR
$5,210 USD
View
9 more retailers have this diamond
Prices start from €525 EURSave up to €4,138 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
4.28ct Round
€525 EUR