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Radiant|Natural|GIA

1.51ct J SI1 Radiant Natural Diamond

ID • J/SI1 • GIA 1459117061

Certificate GIA 1459117061

Diamond specifications and retailer prices

From €2,383 EUR
HK$20,800 HKD
As of November 1, 2026
Save €2,801 EUR (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €5,805 EUR at NZ Jewellers · As of September 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 J 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 1459117061. Listed at 21 retailers as of November 1, 2026, with a 118% 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
J
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1459117061
Dimensions9.18 × 5.19 × 3.55 mm
L/W Ratio1.77
Girdle conditionPolished
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud, Needle
Top View
9.18 mm5.19 mm1.51 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1459117061
Side View
Table 65.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 68.4%

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 1
Current: €2,555 EUR|Low: €2,360 EUR|High: €5,632 EUR|Avg: €3,414 EUR|-7.8%
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
November 1, 2026
Retailer 9€2,383 EUR
Retailer 1€2,555 EUR
Retailer 12€2,828 EUR
Retailer 13€2,861 EUR
Retailer 4€2,977 EUR
Retailer 3€3,191 EUR
Retailer 11€3,229 EUR
Retailer 7€3,239 EUR
Retailer 2€3,294 EUR
Retailer 5€3,569 EUR
Retailer 10€3,630 EUR
Retailer 8€3,810 EUR
Retailer 6€5,184 EUR

32 data points across 13 retailers

21 retailers€2,383 EUR to €5,184 EUR

A
Cheapest Retailer
-
€2,383 EUR
HK$20,800 HKD
A
Retailer 2
-
€2,555 EUR
₹271,875 INR
View
A
Retailer 3
-
€2,828 EUR
$3,159 USD
View
A
Retailer 4
-
€2,861 EUR
$3,196 USD
View
Final sale: no returns
A
Retailer 5
-
€2,977 EUR
SGD 4,495 SGD
View
A
Retailer 6
-
€3,123 EUR
$3,489 USD
View
A
Retailer 7
-
€3,124 EUR
$3,490 USD
View
A
Retailer 8
-
€3,191 EUR
SGD 4,817 SGD
View
A
Retailer 9
-
€3,229 EUR
$3,608 USD
View
A
Retailer 10
-
€3,239 EUR
£2,850 GBP
View
A
Retailer 11
-
€3,294 EUR
$3,680 USD
View
B+
Retailer 12
-
€3,321 EUR
A$5,708 AUD
View
Retailer 13
-
€3,332 EUR
$3,723 USD
View
Price last confirmed 24 days ago
Retailer 14
-
€3,332 EUR
$3,723 USD
View
Price last confirmed 24 days ago
Retailer 15
-
€3,460 EUR
$3,866 USD
View
Price last confirmed 32 days ago
Retailer 16
-
€3,569 EUR
A$6,135 AUD
View
Price last confirmed 24 days ago
B+
Retailer 17
-
€3,630 EUR
View
B+
Retailer 18
-
€3,810 EUR
ZAR 68,766 ZAR
View
Retailer 19
-
€3,844 EUR
$4,295 USD
View
Price last confirmed 23 days ago
B
Retailer 20
-
€5,184 EUR
£4,560 GBP
View
Most Expensive
NZ Jewellers
034ab330-a956-44c8-ade5-01dcb0f68dbe · Sep 30
€5,805 EUR
$6,485 USD
View
Price last confirmed 32 days ago
20 more retailers have this diamond
Prices start from €2,383 EURSave up to €2,801 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
€2,383 EUR