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Radiant|Natural|GIA

0.51ct G SI1 Radiant Natural Diamond

ID • G/SI1 • GIA 6561755542

Certificate GIA 6561755542

Diamond specifications and retailer prices

From €399 EUR
As of November 2, 2026
Save €1,211 EUR (75%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €1,610 EUR at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 0.51ct natural radiant diamond

This 0.51ct natural radiant sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6561755542. Listed at 17 retailers as of November 2, 2026, with prices from €399 to €1,610, a €1,211 spread on the same certified stone. NZ Jewellers lists it at €1,610. 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
G
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle43.5°
Pavilion angle55.6°
OriginNatural
Grading LabGIA
CertificateGIA 6561755542
Dimensions5.44 × 4.04 × 2.72 mm
L/W Ratio1.35
Girdle conditionPolished
Culet sizeNone
Top View
5.44 mm4.04 mm0.51 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6561755542
Side View
Table 69.0%Crown 43.5°Girdle: MED-STKPavilion 55.6°Culet: NoneDepth 67.5%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: €1,610 EUR|Low: €399 EUR|High: €1,610 EUR|Avg: €619 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 3, 2026
Retailer 14€399 EUR
Retailer 7€447 EUR
Retailer 4€457 EUR
Retailer 5€457 EUR
Retailer 17€474 EUR
Retailer 9€513 EUR
Retailer 12€553 EUR
Retailer 13€592 EUR
Retailer 10€623 EUR
Retailer 3€631 EUR
Retailer 16€642 EUR
Retailer 6€684 EUR
Retailer 2€685 EUR
Retailer 8€712 EUR
Retailer 15€722 EUR
Retailer 11€1,185 EUR
NZ Jewellers€1,610 EUR

4 data points across 17 retailers

17 retailers€399 EUR to €1,610 EUR

A
Cheapest Retailer
-
€399 EUR
A
Retailer 2
-
€447 EUR
View
A
Retailer 3
-
€457 EUR
View
A
Retailer 4
-
€457 EUR
View
A
Retailer 5
-
€513 EUR
View
A
Retailer 6
-
€520 EUR
View
A
Retailer 7
-
€553 EUR
View
A
Retailer 8
-
€592 EUR
View
A
Retailer 9
-
€623 EUR
View
B+
Retailer 10
-
€631 EUR
View
B+
Retailer 11
-
€642 EUR
View
B+
Retailer 12
-
€684 EUR
View
B+
Retailer 13
-
€685 EUR
View
B+
Retailer 14
-
€712 EUR
View
B+
Retailer 15
-
€722 EUR
View
B
Retailer 16
-
€1,185 EUR
View
Most Expensive
B
NZ Jewellers
64aecc6f-0a86-4525-a7a4-c4e7ffb59046 · Nov 3
€1,610 EUR
$1,797 USD
View
16 more retailers have this diamond
Prices start from €399 EURSave up to €1,211 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
0.51ct Radiant
€399 EUR