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0.65ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG361990018

Shape and cutting style on the report: Round brilliant

Certificate IGI LG361990018

Diamond specifications and retailer prices

From €261 EUR
As of October 31, 2026
Save €177 EUR (40%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: €439 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 0.65ct lab-grown round diamond

This 0.65ct lab-grown round sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG361990018 or 361990018. Listed at 3 retailers as of October 31, 2026, with prices from €261 to €439, a €177 spread on the same certified stone. Brilliant Earth lists it at €439. 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

0.65
Carat
E
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG361990018
Dimensions5.66 × 5.63 × 3.36 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This laboratory grown diamond is classified as Type II
Top View
5.66 mm5.63 mm0.65 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG361990018
Side View
Table 57.0%Crown 32.2°GirdlePavilion 40.5°Culet: NoneDepth 59.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €439 EUR|Low: €206 EUR|High: €448 EUR|Avg: €303 EUR|-2.0%
Brilliant Earth
Retailer 2
Retailer 3
October 25, 2026
Retailer 3€206 EUR
Retailer 2€261 EUR
Brilliant Earth€439 EUR

7 data points across 3 retailers

3 retailers€261 EUR to €439 EUR

Retailer 1
-
€206 EUR
$230 USD
Price last confirmed 23 days ago
B+
Retailer 2
-
€261 EUR
View
Most Expensive
B
Brilliant Earth
16335818A · Oct 31
€439 EUR
$490 USD
View
2 more retailers have this diamond
Prices start from €261 EURSave up to €177 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.

B+
0.65ct Round
€261 EUR