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Radiant|Natural|GIA

1.00ct J SI1 Radiant Natural Diamond

ID • J/SI1 • GIA 6551655996

Certificate GIA 6551655996

Diamond specifications and retailer prices

From €1,141 EUR
$1,275 USD
As of November 1, 2026
Save €425 EUR (27%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: €1,566 EUR at Jared · As of October 30, 2026
View at Jared

About this 1ct natural radiant diamond

This 1ct natural radiant sits in the classic one-carat band, graded J 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 6551655996. Listed at 8 retailers as of October 30, 2026, with prices from €1,141 to €1,566, a €425 spread on the same certified stone. Jared lists it at €1,566. 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
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6551655996
Dimensions6.43 × 4.79 × 3.34 mm
L/W Ratio1.34
Culet sizeNone
Key to symbols
Crystal, Feather, Needle, Natural
Top View
6.43 mm4.79 mm1.00 ctJ / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6551655996
Side View
Table 68.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 69.8%

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 1
Current: €1,566 EUR|Low: €1,027 EUR|High: €1,638 EUR|Avg: €1,404 EUR|-4.4%
Jared
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 21, 2026
Retailer 2€1,141 EUR
Retailer 8€1,167 EUR
Retailer 4€1,307 EUR
Retailer 6€1,424 EUR
Retailer 7€1,459 EUR
Retailer 3€1,513 EUR
Retailer 5€1,513 EUR
Jared€1,566 EUR

16 data points across 8 retailers

8 retailers€1,141 EUR to €1,566 EUR

A
Cheapest Retailer
-
€1,141 EUR
$1,275 USD
A
Retailer 2
-
€1,167 EUR
$1,304 USD
View
Final sale: no returns
A
Retailer 3
-
€1,307 EUR
$1,460 USD
View
B+
Retailer 4
-
€1,424 EUR
$1,591 USD
View
B+
Retailer 5
-
€1,459 EUR
SGD 2,203 SGD
View
B+
Retailer 6
-
€1,513 EUR
$1,690 USD
View
B+
Retailer 7
-
€1,513 EUR
$1,690 USD
View
Most Expensive
B+
Jared
159877343 · Oct 30
€1,566 EUR
$1,750 USD
View
7 more retailers have this diamond
Prices start from €1,141 EURSave up to €425 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
€1,141 EUR