Radiant|Natural|GIA

1.51ct I SI1 Radiant Natural Diamond

VG • I/SI1 • GIA 2436825305

Certificate GIA 2436825305

Diamond specifications and retailer prices

From €6,203 EUR
$6,957 USD
As of November 1, 2026
Save €6,920 EUR (53%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €13,122 EUR at NZ Jewellers · As of November 3, 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 I 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 2436825305. Listed at 12 retailers as of November 1, 2026, with prices from €6,203 to €13,122, a €6,920 spread on the same certified stone. NZ Jewellers lists it at €13,122. 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
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2436825305
Dimensions8.52 × 5.46 × 3.64 mm
L/W Ratio1.56
Top View
8.52 mm5.46 mm1.51 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2436825305
Side View
Table 71.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 66.7%

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: €13,122 EUR|Low: €6,014 EUR|High: €13,122 EUR|Avg: €8,370 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 3, 2026
Retailer 5€6,560 EUR
Retailer 8€6,561 EUR
Retailer 7€7,108 EUR
Retailer 6€7,217 EUR
Retailer 2€7,386 EUR
Retailer 9€8,202 EUR
Retailer 3€8,204 EUR
Retailer 4€10,934 EUR
NZ Jewellers€13,122 EUR

41 data points across 9 retailers

12 retailers€6,203 EUR to €13,122 EUR

B+
Cheapest Retailer
-
€6,203 EUR
$6,957 USD
B
Retailer 2
-
€6,560 EUR
$7,358 USD
View
Final sale: no returns
B
Retailer 3
-
€7,108 EUR
$7,972 USD
View
B
Retailer 4
-
€7,217 EUR
$8,095 USD
View
B
Retailer 5
-
€7,386 EUR
£6,523 GBP
View
B
Retailer 6
-
€7,890 EUR
$8,850 USD
View
B
Retailer 7
-
€7,890 EUR
$8,850 USD
View
B
Retailer 8
-
€8,158 EUR
$9,150 USD
View
B
Retailer 9
-
€8,202 EUR
$9,199 USD
View
B
Retailer 10
-
€8,204 EUR
View
B
Retailer 11
-
€10,934 EUR
£9,656 GBP
View
Most Expensive
C
NZ Jewellers
ab9b8bea-9850-4c55-a97e-6b68f5f90322 · Nov 3
€13,122 EUR
$14,718 USD
View
11 more retailers have this diamond
Prices start from €6,203 EURSave up to €6,920 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
€6,203 EUR