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Radiant|Natural|GIA

1.00ct D SI1 Radiant Natural Diamond

ID • D/SI1 • GIA 6555914191

Certificate GIA 6555914191

Diamond specifications and retailer prices

From €1,605 EUR
As of November 6, 2026
Save €2,869 EUR (64%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €4,474 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1ct natural radiant diamond

This 1ct natural radiant sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555914191. Listed at 23 retailers as of November 5, 2026, with prices from €1,605 to €4,474, a €2,869 spread on the same certified stone. NZ Jewellers lists it at €4,474. 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

1.00
Carat
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6555914191
Dimensions6.88 × 5.09 × 3.45 mm
L/W Ratio1.35
Girdle conditionPolished
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
6.88 mm5.09 mm1.00 ctD / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6555914191
Side View
Table 68.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 67.6%

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: €4,474 EUR|Low: €1,605 EUR|High: €4,537 EUR|Avg: €2,505 EUR|-1.4%
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
Retailer 18
Retailer 19
Retailer 20
November 7, 2026
Retailer 17€1,605 EUR
Retailer 16€1,689 EUR
Retailer 6€1,927 EUR
Retailer 5€1,974 EUR
Retailer 7€2,003 EUR
Retailer 2€2,064 EUR
Retailer 18€2,075 EUR
Retailer 8€2,140 EUR
Retailer 12€2,170 EUR
Retailer 20€2,235 EUR
Retailer 13€2,238 EUR
Retailer 14€2,263 EUR
Retailer 19€2,265 EUR
Retailer 15€2,329 EUR
Retailer 4€2,469 EUR
Retailer 3€2,657 EUR
Retailer 10€2,666 EUR
Retailer 9€3,801 EUR
Retailer 11€4,191 EUR
NZ Jewellers€4,474 EUR

21 data points across 20 retailers

23 retailers€1,605 EUR to €4,474 EUR

A
Cheapest Retailer
-
€1,605 EUR
A
Retailer 2
-
€1,689 EUR
View
A
Retailer 3
-
€1,927 EUR
View
A
Retailer 4
-
€1,974 EUR
View
Final sale: no returns
A
Retailer 5
-
€2,003 EUR
View
A
Retailer 6
-
€2,064 EUR
View
A
Retailer 7
-
€2,064 EUR
View
A
Retailer 8
-
€2,075 EUR
View
A
Retailer 9
-
€2,140 EUR
View
Retailer 10
-
€2,170 EUR
View
Price last confirmed 9 days ago
A
Retailer 11
-
€2,210 EUR
View
A
Retailer 12
-
€2,235 EUR
View
A
Retailer 13
-
€2,238 EUR
View
A
Retailer 14
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€2,263 EUR
View
A
Retailer 15
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€2,265 EUR
View
A
Retailer 16
-
€2,329 EUR
View
B+
Retailer 17
-
€2,469 EUR
View
B+
Retailer 18
-
€2,657 EUR
View
B+
Retailer 19
-
€2,666 EUR
View
Retailer 20
-
€2,708 EUR
View
Price last confirmed 31 days ago
B
Retailer 21
-
€3,801 EUR
View
Retailer 22
-
€4,191 EUR
View
Price last confirmed 10 days ago
Most Expensive
B
NZ Jewellers
ad20a315-d23f-4a84-b70e-90bfafbe9269 · Nov 5
€4,474 EUR
$4,995 USD
View
22 more retailers have this diamond
Prices start from €1,605 EURSave up to €2,869 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
1.00ct Radiant
€1,605 EUR