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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 €4,386 EUR
$4,900 USD
As of November 1, 2026
Save €5,004 EUR (53%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €9,390 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 €4,386 to €9,390, a €5,004 spread on the same certified stone. NZ Jewellers lists it at €9,390. 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
Color
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: €9,390 EUR|Low: €4,069 EUR|High: €9,390 EUR|Avg: €5,976 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€4,305 EUR
Retailer 10€4,436 EUR
Retailer 12€4,695 EUR
Retailer 9€4,734 EUR
Retailer 3€5,086 EUR
Retailer 4€5,086 EUR
Retailer 2€5,386 EUR
Retailer 11€5,550 EUR
Retailer 7€6,135 EUR
Retailer 6€6,898 EUR
Retailer 5€8,271 EUR
NZ Jewellers€9,390 EUR

45 data points across 12 retailers

23 retailers€4,386 EUR to €9,390 EUR

Retailer 1
-
€4,305 EUR
$4,810 USD
Price last confirmed 14 days ago
B+
Retailer 2
-
€4,386 EUR
$4,900 USD
View
B+
Retailer 3
-
€4,436 EUR
$4,956 USD
View
B
Retailer 4
-
€4,618 EUR
A$7,938 AUD
View
B
Retailer 5
-
€4,695 EUR
$5,245 USD
View
Final sale: no returns
B
Retailer 6
-
€4,734 EUR
$5,289 USD
View
B
Retailer 7
-
€4,753 EUR
$5,310 USD
View
B
Retailer 8
-
€5,023 EUR
$5,612 USD
View
B
Retailer 9
-
€5,086 EUR
$5,682 USD
View
B
Retailer 10
-
€5,086 EUR
$5,682 USD
View
B
Retailer 11
-
€5,086 EUR
$5,682 USD
View
B
Retailer 12
-
€5,386 EUR
£4,738 GBP
View
B
Retailer 13
-
€5,456 EUR
A$9,378 AUD
View
Retailer 14
-
€5,550 EUR
A$9,539 AUD
View
Price last confirmed 22 days ago
B
Retailer 15
-
€5,585 EUR
$6,240 USD
View
B
Retailer 16
-
€5,585 EUR
$6,240 USD
View
B
Retailer 17
-
€5,764 EUR
$6,440 USD
View
B
Retailer 18
-
€5,869 EUR
$6,557 USD
View
B
Retailer 19
-
€6,135 EUR
View
Retailer 20
-
€6,190 EUR
$6,916 USD
View
Price last confirmed 9 days ago
B
Retailer 21
-
€6,898 EUR
ZAR 124,500 ZAR
View
B
Retailer 22
-
€8,271 EUR
£7,276 GBP
View
Most Expensive
C
NZ Jewellers
5e857763-58db-40dd-b925-02ba4a7cf632 · Oct 30
€9,390 EUR
$10,491 USD
View
22 more retailers have this diamond
Prices start from €4,386 EURSave up to €5,004 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
€4,386 EUR