CaratHunter
Plans
Radiant|Natural|GIA

1.51ct F SI1 Radiant Natural Diamond

EX • F/SI1 • GIA 6545057025

Certificate GIA 6545057025

Diamond specifications and retailer prices

From €7,195 EUR
A$12,415 AUD
As of November 1, 2026
Save €5,625 EUR (44%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €12,820 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545057025. Listed at 20 retailers as of October 30, 2026, with prices from €7,195 to €12,820, a €5,625 spread on the same certified stone. NZ Jewellers lists it at €12,820. 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
F
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.53°
Pavilion angle29.05°
OriginNatural
Grading LabGIA
CertificateGIA 6545057025
Dimensions5.53 × 8.15 × 3.60 mm
L/W Ratio1.47
Top View
5.53 mm8.15 mm1.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545057025
Side View
Table 66.0%Crown 43.53°Girdle: Very ThickPavilion 29.05°Culet: NoneDepth 65.2%

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: €12,820 EUR|Low: €7,051 EUR|High: €13,222 EUR|Avg: €9,009 EUR|-3.0%
NZ Jewellers
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 9€7,201 EUR
Retailer 19€7,641 EUR
Retailer 5€7,692 EUR
Retailer 15€7,692 EUR
Retailer 8€7,756 EUR
Retailer 6€8,333 EUR
Retailer 2€8,409 EUR
Retailer 13€8,448 EUR
Retailer 18€8,461 EUR
Retailer 3€8,548 EUR
Retailer 4€9,085 EUR
Retailer 17€9,085 EUR
Retailer 11€9,187 EUR
Retailer 14€9,335 EUR
Retailer 16€9,388 EUR
Retailer 7€9,615 EUR
Retailer 10€10,124 EUR
Retailer 12€12,013 EUR
NZ Jewellers€12,820 EUR

42 data points across 19 retailers

20 retailers€7,195 EUR to €12,820 EUR

B+
Cheapest Retailer
-
€7,195 EUR
A$12,415 AUD
B+
Retailer 2
-
€7,201 EUR
$8,077 USD
View
B+
Retailer 3
-
€7,641 EUR
$8,570 USD
View
B+
Retailer 4
-
€7,692 EUR
$8,627 USD
View
B+
Retailer 5
-
€7,692 EUR
$8,627 USD
View
Final sale: no returns
B+
Retailer 6
-
€7,756 EUR
$8,699 USD
View
B+
Retailer 7
-
€8,333 EUR
$9,346 USD
View
B+
Retailer 8
-
€8,409 EUR
£7,426 GBP
View
Retailer 9
-
€8,448 EUR
A$14,577 AUD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
€8,461 EUR
$9,490 USD
View
B+
Retailer 11
-
€8,548 EUR
$9,587 USD
View
B
Retailer 12
-
€9,085 EUR
$10,190 USD
View
B
Retailer 13
-
€9,085 EUR
$10,190 USD
View
B
Retailer 14
-
€9,187 EUR
$10,305 USD
View
B
Retailer 15
-
€9,335 EUR
$10,470 USD
View
B
Retailer 16
-
€9,388 EUR
$10,530 USD
View
B
Retailer 17
-
€9,615 EUR
$10,784 USD
View
Retailer 18
-
€10,124 EUR
$11,355 USD
View
Price last confirmed 10 days ago
B
Retailer 19
-
€12,013 EUR
£10,609 GBP
View
Most Expensive
B
NZ Jewellers
1e0b6c26-ff93-4381-948b-98c0c0e75016 · Oct 30
€12,820 EUR
$14,379 USD
View
19 more retailers have this diamond
Prices start from €7,195 EURSave up to €5,625 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
€7,195 EUR