Radiant|Natural|GIA

1.51ct E SI1 Radiant Natural Diamond

EX • E/SI1 • GIA 2245001864

Certificate GIA 2245001864

Diamond specifications and retailer prices

From €5,260 EUR
$5,876 USD
As of October 30, 2026
Save €4,770 EUR (48%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: €12,676 EUR at NZ Jewellers · As of September 21, 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 E 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 2245001864. Listed at 23 retailers as of October 29, 2026, with a 91% 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2245001864
Dimensions7.57 × 5.59 × 3.79 mm
L/W Ratio1.35
Girdle conditionPolished
Top View
7.57 mm5.59 mm1.51 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245001864
Side View
Table 66.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.8%

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: Oct 30
Current: €5,929 EUR|Low: €5,260 EUR|High: €10,418 EUR|Avg: €6,620 EUR|-1.7%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
October 30, 2026
Retailer 17€5,260 EUR
Retailer 8€5,270 EUR
Retailer 4€5,611 EUR
Retailer 3€5,695 EUR
Retailer 14€5,830 EUR
Retailer 6€5,871 EUR
Retailer 18€5,928 EUR
Retailer 1€5,929 EUR
Retailer 10€5,985 EUR
Retailer 7€5,997 EUR
Retailer 9€6,185 EUR
Retailer 5€6,228 EUR
Retailer 12€6,443 EUR
Retailer 13€6,864 EUR
Retailer 11€6,894 EUR
Retailer 2€7,617 EUR
Retailer 16€7,809 EUR
Retailer 19€8,715 EUR
Retailer 15€10,030 EUR

22 data points across 19 retailers

23 retailers€5,260 EUR to €10,030 EUR

A
Cheapest Retailer
-
€5,260 EUR
$5,876 USD
A
Retailer 2
-
€5,270 EUR
HK$46,000 HKD
View
A
Retailer 3
-
€5,611 EUR
$6,269 USD
View
A
Retailer 4
-
€5,695 EUR
$6,362 USD
View
A
Retailer 5
-
€5,830 EUR
$6,513 USD
View
A
Retailer 6
-
€5,871 EUR
A$10,091 AUD
View
A
Retailer 7
-
€5,928 EUR
$6,623 USD
View
A
Retailer 8
-
€5,929 EUR
View
A
Retailer 9
-
€5,985 EUR
$6,686 USD
View
Final sale: no returns
A
Retailer 10
-
€5,997 EUR
$6,700 USD
View
Retailer 11
-
€6,046 EUR
SGD 9,128 SGD
View
Price last confirmed 22 days ago
A
Retailer 12
-
€6,185 EUR
$6,910 USD
View
A
Retailer 13
-
€6,228 EUR
$6,958 USD
View
A
Retailer 14
-
€6,443 EUR
£5,668 GBP
View
Retailer 15
-
€6,767 EUR
$7,560 USD
View
Price last confirmed 22 days ago
A
Retailer 16
-
€6,864 EUR
$7,668 USD
View
Retailer 17
-
€6,894 EUR
A$11,850 AUD
View
Price last confirmed 8 days ago
B+
Retailer 18
-
€6,998 EUR
A$12,028 AUD
View
B+
Retailer 19
-
€7,617 EUR
$8,510 USD
View
B+
Retailer 20
-
€7,809 EUR
View
B+
Retailer 21
-
€8,715 EUR
ZAR 157,302 ZAR
View
B+
Retailer 22
-
€10,030 EUR
£8,823 GBP
View
Most Expensive
NZ Jewellers
d72e9f87-f2b0-40af-9c57-de40d7e9850d · Sep 21
€12,676 EUR
$14,162 USD
View
Price last confirmed 39 days ago
22 more retailers have this diamond
Prices start from €5,260 EURSave up to €4,770 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
€5,260 EUR