Radiant|Natural|GIA

0.51ct I SI1 Radiant Natural Diamond

VG • I/SI1 • GIA 1379698927

Certificate GIA 1379698927

Diamond specifications and retailer prices

From €469 EUR
As of November 6, 2026
Save €1,128 EUR (71%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €1,597 EUR at NZ Jewellers · As of November 5, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1379698927. Listed at 15 retailers as of November 5, 2026, with prices from €469 to €1,597, a €1,128 spread on the same certified stone. NZ Jewellers lists it at €1,597. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1379698927
Dimensions5.12 × 4.07 × 2.59 mm
L/W Ratio1.26
Key to symbols
Needle, Feather, Crystal
Top View
5.12 mm4.07 mm0.51 ctI / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1379698927
Side View
Table 71.0%CrownGirdlePavilionCulet: NoneDepth 63.6%

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 6
Current: €1,597 EUR|Low: €431 EUR|High: €1,597 EUR|Avg: €682 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
November 7, 2026
Retailer 7€468 EUR
Retailer 4€469 EUR
Retailer 13€504 EUR
Retailer 16€510 EUR
Retailer 14€548 EUR
Retailer 15€548 EUR
Retailer 8€568 EUR
Retailer 6€573 EUR
Retailer 3€588 EUR
Retailer 9€618 EUR
Retailer 10€622 EUR
Retailer 5€685 EUR
Retailer 11€752 EUR
Retailer 12€785 EUR
Retailer 2€1,170 EUR
NZ Jewellers€1,597 EUR

31 data points across 16 retailers

15 retailers€469 EUR to €1,597 EUR

B+
Cheapest Retailer
-
€469 EUR
Final sale: no returns
B+
Retailer 2
-
€504 EUR
View
A
Retailer 3
-
€510 EUR
View
B+
Retailer 4
-
€548 EUR
View
Retailer 5
-
€548 EUR
View
Price last confirmed 9 days ago
B+
Retailer 6
-
€573 EUR
View
B+
Retailer 7
-
€588 EUR
View
B+
Retailer 8
-
€618 EUR
View
B+
Retailer 9
-
€622 EUR
View
B+
Retailer 10
-
€627 EUR
View
B+
Retailer 11
-
€685 EUR
View
B
Retailer 12
-
€752 EUR
View
B
Retailer 13
-
€785 EUR
View
B
Retailer 14
-
€1,170 EUR
View
Most Expensive
C
NZ Jewellers
59126b56-8549-405a-82f9-ea03ad1831b6 · Nov 5
€1,597 EUR
$1,783 USD
View
14 more retailers have this diamond
Prices start from €469 EURSave up to €1,128 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
€469 EUR