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Radiant|Natural|GIA

1.51ct J SI1 Radiant Natural Diamond

VG • J/SI1 • GIA 2171943911

Certificate GIA 2171943911

Diamond specifications and retailer prices

From €4,369 EUR
$4,900 USD
As of November 1, 2026
Save €4,985 EUR (53%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €9,354 EUR at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded J 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 2171943911. Listed at 23 retailers as of October 30, 2026, with prices from €4,369 to €9,354, a €4,985 spread on the same certified stone. NZ Jewellers lists it at €9,354. 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

1.51
Carat
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2171943911
Dimensions7.12 × 5.74 × 3.98 mm
L/W Ratio1.24
Culet sizeNone
Top View
7.12 mm5.74 mm1.51 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2171943911
Side View
Table 67.0%CrownGirdle: THK-THKPavilionCulet: NoneDepth 69.3%

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: Nov 1
Current: €9,354 EUR|Low: €4,053 EUR|High: €9,354 EUR|Avg: €5,954 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
November 2, 2026
Retailer 8€4,288 EUR
Retailer 10€4,419 EUR
Retailer 12€4,676 EUR
Retailer 9€4,716 EUR
Retailer 3€5,066 EUR
Retailer 4€5,066 EUR
Retailer 5€5,365 EUR
Retailer 11€5,528 EUR
Retailer 2€6,109 EUR
Retailer 7€6,871 EUR
Retailer 6€8,239 EUR
NZ Jewellers€9,354 EUR

44 data points across 12 retailers

23 retailers€4,369 EUR to €9,354 EUR

Retailer 1
-
€4,288 EUR
$4,810 USD
Price last confirmed 14 days ago
B+
Retailer 2
-
€4,369 EUR
$4,900 USD
View
B+
Retailer 3
-
€4,419 EUR
$4,956 USD
View
B
Retailer 4
-
€4,600 EUR
A$7,938 AUD
View
B
Retailer 5
-
€4,676 EUR
$5,245 USD
View
Final sale: no returns
B
Retailer 6
-
€4,716 EUR
$5,289 USD
View
B
Retailer 7
-
€4,734 EUR
$5,310 USD
View
B
Retailer 8
-
€5,003 EUR
$5,612 USD
View
B
Retailer 9
-
€5,066 EUR
$5,682 USD
View
B
Retailer 10
-
€5,066 EUR
$5,682 USD
View
B
Retailer 11
-
€5,066 EUR
$5,682 USD
View
B
Retailer 12
-
€5,365 EUR
£4,738 GBP
View
B
Retailer 13
-
€5,435 EUR
A$9,378 AUD
View
Retailer 14
-
€5,528 EUR
A$9,539 AUD
View
Price last confirmed 22 days ago
B
Retailer 15
-
€5,563 EUR
$6,240 USD
View
B
Retailer 16
-
€5,563 EUR
$6,240 USD
View
B
Retailer 17
-
€5,742 EUR
$6,440 USD
View
B
Retailer 18
-
€5,846 EUR
$6,557 USD
View
B
Retailer 19
-
€6,109 EUR
View
Retailer 20
-
€6,166 EUR
$6,916 USD
View
Price last confirmed 10 days ago
B
Retailer 21
-
€6,871 EUR
ZAR 124,500 ZAR
View
B
Retailer 22
-
€8,239 EUR
£7,276 GBP
View
Most Expensive
C
NZ Jewellers
5e857763-58db-40dd-b925-02ba4a7cf632 · Oct 30
€9,354 EUR
$10,491 USD
View
22 more retailers have this diamond
Prices start from €4,369 EURSave up to €4,985 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+
1.51ct Radiant
€4,369 EUR