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0.51ct L SI2 Round Natural Diamond

EX • L/SI2 • IGI 800673924

Shape and cutting style on the report: Round brilliant

Certificate IGI 800673924

Diamond specifications and retailer prices

From €361 EUR
As of November 6, 2026
Save €20 EUR (5%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €958 EUR at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.51ct natural round diamond

This 0.51ct natural round sits in the half to three-quarter carat band, graded L colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 800673924. Listed at 6 retailers as of November 2, 2026, with a relatively tight 6% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

0.51
Carat
L
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle35.3°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 800673924
Dimensions5.09 × 5.14 × 3.20 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
5.09 mm5.14 mm0.51 ctL / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateIGI 800673924
Side View
Table 57.0%Crown 35.3°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.6%

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: Nov 6
Current: €958 EUR|Low: €211 EUR|High: €1,787 EUR|Avg: €503 EUR|-46.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 6€211 EUR
Retailer 3€236 EUR
Retailer 5€361 EUR
Retailer 4€381 EUR
Retailer 2€421 EUR
NZ Jewellers€958 EUR

27 data points across 6 retailers

6 retailers€361 EUR to €381 EUR

Retailer 1
-
€211 EUR
Price last confirmed 9 days ago
Retailer 2
-
€236 EUR
View
Price last confirmed 9 days ago
B+
Retailer 3
-
€361 EUR
View
B+
Retailer 4
-
€381 EUR
View
Retailer 5
-
€421 EUR
View
Price last confirmed 7 days ago
Most Expensive
NZ Jewellers
ce65d4e8-f910-4051-aa4c-b51b6c3e0d1d · Oct 30
€958 EUR
$1,075 USD
View
Price last confirmed 7 days ago
5 more retailers have this diamond
Prices start from €361 EURSave up to €20 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+
0.51ct Round
€361 EUR