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Radiant|Natural|GIA

1.00ct D SI1 Radiant Natural Diamond

VG • D/SI1 • GIA 1455156310

Certificate GIA 1455156310

Diamond specifications and retailer prices

From €3,198 EUR
$3,573 USD
As of October 30, 2026
Save €3,135 EUR (49%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €6,333 EUR at NZ Jewellers · As of October 30, 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 very-good cut grade stated by the retailer rather than the lab and certified by GIA 1455156310. Listed at 16 retailers as of October 30, 2026, with prices from €3,198 to €6,333, a €3,135 spread on the same certified stone. NZ Jewellers lists it at €6,333. 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

1.00
Carat
D
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1455156310
Dimensions6.39 × 5.27 × 3.47 mm
L/W Ratio1.21
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Pinpoint, Natural
Top View
6.39 mm5.27 mm1.00 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1455156310
Side View
Table 74.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 65.8%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: €3,461 EUR|Low: €3,281 EUR|High: €6,004 EUR|Avg: €4,065 EUR|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 6€3,281 EUR
Retailer 1€3,461 EUR
Retailer 8€3,635 EUR
Retailer 3€3,688 EUR
Retailer 7€3,897 EUR
Retailer 5€4,115 EUR
Retailer 4€4,468 EUR
Retailer 2€5,933 EUR

37 data points across 8 retailers

16 retailers€3,198 EUR to €6,333 EUR

B+
Cheapest Retailer
-
€3,198 EUR
$3,573 USD
B+
Retailer 2
-
€3,281 EUR
$3,665 USD
View
B+
Retailer 3
-
€3,461 EUR
£3,044 GBP
View
B+
Retailer 4
-
€3,464 EUR
$3,870 USD
View
B
Retailer 5
-
€3,635 EUR
$4,061 USD
View
B
Retailer 6
-
€3,635 EUR
$4,061 USD
View
B
Retailer 7
-
€3,635 EUR
$4,061 USD
View
B
Retailer 8
-
€3,688 EUR
£3,244 GBP
View
B
Retailer 9
-
€3,767 EUR
$4,208 USD
View
B
Retailer 10
-
€3,775 EUR
$4,217 USD
View
Retailer 11
-
€3,897 EUR
A$6,699 AUD
View
Price last confirmed 28 days ago
B
Retailer 12
-
€4,115 EUR
View
B
Retailer 13
-
€4,194 EUR
$4,686 USD
View
B
Retailer 14
-
€4,468 EUR
ZAR 80,642 ZAR
View
B
Retailer 15
-
€5,933 EUR
£5,219 GBP
View
Most Expensive
B
NZ Jewellers
daf17a90-33e0-4434-84b4-9175f08594d9 · Oct 30
€6,333 EUR
$7,075 USD
View
15 more retailers have this diamond
Prices start from €3,198 EURSave up to €3,135 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+
1.00ct Radiant
€3,198 EUR