CaratHunter
Plans
Radiant|Natural|GIA

1.51ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 1525780219

Certificate GIA 1525780219

Diamond specifications and retailer prices

From €3,488 EUR
$3,912 USD
As of November 2, 2026
Save €4,298 EUR (55%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: €7,786 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 I 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 1525780219. Listed at 29 retailers as of October 30, 2026, with prices from €3,488 to €7,786, a €4,298 spread on the same certified stone. NZ Jewellers lists it at €7,786. 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
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.97°
Pavilion angle31.5°
OriginNatural
Grading LabGIA
CertificateGIA 1525780219
Dimensions7.21 × 5.69 × 3.91 mm
L/W Ratio1.27
Girdle conditionVery Thick
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
7.21 mm5.69 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1525780219
Side View
Table 66.0%Crown 44.97°Girdle: THK-VTHPavilion 31.5°Culet: NoneDepth 68.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: €7,786 EUR|Low: €3,015 EUR|High: €7,786 EUR|Avg: €4,550 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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
Retailer 24
Retailer 25
Retailer 26
November 2, 2026
Retailer 11€3,488 EUR
Retailer 8€3,491 EUR
Retailer 22€3,529 EUR
Retailer 7€3,531 EUR
Retailer 12€3,572 EUR
Retailer 10€3,738 EUR
Retailer 24€3,829 EUR
Retailer 9€4,022 EUR
Retailer 16€4,037 EUR
Retailer 6€4,049 EUR
Retailer 14€4,049 EUR
Retailer 23€4,049 EUR
Retailer 25€4,116 EUR
Retailer 15€4,338 EUR
Retailer 13€4,444 EUR
Retailer 5€4,547 EUR
Retailer 26€4,547 EUR
Retailer 17€4,612 EUR
Retailer 18€4,620 EUR
Retailer 4€4,672 EUR
Retailer 3€4,699 EUR
Retailer 2€4,769 EUR
Retailer 21€5,494 EUR
Retailer 19€6,469 EUR
Retailer 20€7,119 EUR
NZ Jewellers€7,786 EUR

40 data points across 26 retailers

29 retailers€3,488 EUR to €7,786 EUR

A
Cheapest Retailer
-
€3,488 EUR
$3,912 USD
A
Retailer 2
-
€3,491 EUR
$3,916 USD
View
A
Retailer 3
-
€3,529 EUR
$3,958 USD
View
A
Retailer 4
-
€3,531 EUR
$3,960 USD
View
A
Retailer 5
-
€3,572 EUR
$4,007 USD
View
A
Retailer 6
-
€3,693 EUR
A$6,372 AUD
View
A
Retailer 7
-
€3,738 EUR
$4,192 USD
View
Final sale: no returns
A
Retailer 8
-
€3,829 EUR
$4,295 USD
View
A
Retailer 9
-
€4,022 EUR
$4,512 USD
View
Retailer 10
-
€4,037 EUR
$4,528 USD
View
Price last confirmed 10 days ago
A
Retailer 11
-
€4,049 EUR
$4,541 USD
View
A
Retailer 12
-
€4,049 EUR
$4,541 USD
View
A
Retailer 13
-
€4,049 EUR
$4,541 USD
View
A
Retailer 14
-
€4,116 EUR
$4,617 USD
View
A
Retailer 15
-
€4,258 EUR
A$7,348 AUD
View
A
Retailer 16
-
€4,338 EUR
$4,865 USD
View
A
Retailer 17
-
€4,444 EUR
£3,925 GBP
View
A
Retailer 18
-
€4,547 EUR
$5,100 USD
View
A
Retailer 19
-
€4,547 EUR
$5,100 USD
View
A
Retailer 20
-
€4,612 EUR
$5,173 USD
View
Retailer 21
-
€4,620 EUR
A$7,973 AUD
View
Price last confirmed 24 days ago
A
Retailer 22
-
€4,672 EUR
$5,240 USD
View
A
Retailer 23
-
€4,699 EUR
$5,270 USD
View
A
Retailer 24
-
€4,769 EUR
View
Retailer 25
-
€4,791 EUR
$5,374 USD
View
Price last confirmed 57 days ago
B+
Retailer 26
-
€5,494 EUR
ZAR 99,544 ZAR
View
B
Retailer 27
-
€6,469 EUR
$7,255 USD
View
B+
Retailer 28
-
€7,119 EUR
£6,287 GBP
View
Most Expensive
B
NZ Jewellers
cde40c29-89bd-459f-8487-001a75435224 · Oct 30
€7,786 EUR
$8,733 USD
View
28 more retailers have this diamond
Prices start from €3,488 EURSave up to €4,298 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.

A
1.51ct Radiant
€3,488 EUR