Radiant|Natural|GIA

1.51ct H SI1 Radiant Natural Diamond

EX • H/SI1 • GIA 2564014021

Certificate GIA 2564014021

Diamond specifications and retailer prices

From €6,017 EUR
As of November 4, 2026
Save €4,567 EUR (43%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €11,382 EUR at NZ Jewellers · As of September 28, 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 H 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 2564014021. Listed at 14 retailers as of November 4, 2026, with a 76% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.51
Carat
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2564014021
Dimensions8.03 × 5.67 × 3.84 mm
L/W Ratio1.42
Girdle conditionThick
Top View
8.03 mm5.67 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2564014021
Side View
Table 66.0%CrownGirdle: Slightly ThickPavilionCulet: NoneDepth 67.7%

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 4
Current: €7,120 EUR|Low: €4,935 EUR|High: €10,613 EUR|Avg: €7,007 EUR|+12.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 7, 2026
Retailer 6€5,193 EUR
Retailer 3€6,017 EUR
Retailer 2€6,368 EUR
Retailer 14€6,368 EUR
Retailer 15€6,422 EUR
Retailer 5€6,551 EUR
Retailer 13€6,899 EUR
Retailer 7€6,951 EUR
Retailer 12€7,005 EUR
Retailer 1€7,120 EUR
Retailer 4€7,302 EUR
Retailer 8€7,380 EUR
Retailer 9€8,273 EUR
Retailer 10€9,291 EUR
Retailer 11€10,584 EUR

16 data points across 15 retailers

14 retailers€6,017 EUR to €10,584 EUR

B+
Cheapest Retailer
-
€6,017 EUR
B+
Retailer 2
-
€6,368 EUR
View
B+
Retailer 3
-
€6,368 EUR
View
Final sale: no returns
B+
Retailer 4
-
€6,422 EUR
View
Retailer 5
-
€6,551 EUR
View
Price last confirmed 40 days ago
B+
Retailer 6
-
€6,899 EUR
View
B+
Retailer 7
-
€7,005 EUR
View
B+
Retailer 8
-
€7,120 EUR
View
B
Retailer 9
-
€7,302 EUR
View
B+
Retailer 10
-
€7,380 EUR
View
B
Retailer 11
-
€8,273 EUR
View
B
Retailer 12
-
€9,291 EUR
View
B
Retailer 13
-
€10,584 EUR
View
Most Expensive
NZ Jewellers
93c09131-28a5-4d7a-821b-29a8cc6de063 · Sep 28
€11,382 EUR
$12,708 USD
View
Price last confirmed 40 days ago
13 more retailers have this diamond
Prices start from €6,017 EURSave up to €4,567 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
€6,017 EUR