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Radiant|Natural|GIA

1.51ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 6532464929

Certificate GIA 6532464929

Diamond specifications and retailer prices

From €5,829 EUR
$6,512 USD
As of October 26, 2026
Save €5,693 EUR (49%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €11,522 EUR at NZ Jewellers · As of October 27, 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 6532464929. Listed at 16 retailers as of October 26, 2026, with prices from €5,829 to €11,522, a €5,693 spread on the same certified stone. NZ Jewellers lists it at €11,522. 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
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6532464929
Dimensions7.73 × 5.60 × 3.84 mm
L/W Ratio1.38
Top View
7.73 mm5.60 mm1.51 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6532464929
Side View
Table 67.0%CrownGirdlePavilionCulet: NoneDepth 68.5%

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: Oct 26
Current: €11,522 EUR|Low: €5,829 EUR|High: €11,522 EUR|Avg: €7,090 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
November 2, 2026
Retailer 7€5,829 EUR
Retailer 6€6,008 EUR
Retailer 2€6,231 EUR
Retailer 5€6,355 EUR
Retailer 3€6,359 EUR
Retailer 12€6,359 EUR
Retailer 9€6,399 EUR
Retailer 4€6,711 EUR
Retailer 15€6,889 EUR
Retailer 14€6,995 EUR
Retailer 10€7,487 EUR
Retailer 13€7,948 EUR
Retailer 8€8,389 EUR
Retailer 11€9,382 EUR
NZ Jewellers€11,522 EUR

39 data points across 15 retailers

16 retailers€5,829 EUR to €11,522 EUR

B+
Cheapest Retailer
-
€5,829 EUR
$6,512 USD
B+
Retailer 2
-
€6,008 EUR
$6,712 USD
View
B+
Retailer 3
-
€6,231 EUR
£5,481 GBP
View
Retailer 4
-
€6,355 EUR
$7,100 USD
View
Price last confirmed 5 days ago
Retailer 5
-
€6,359 EUR
$7,104 USD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
€6,399 EUR
£5,629 GBP
View
Retailer 7
-
€6,711 EUR
A$11,534 AUD
View
Price last confirmed 29 days ago
B+
Retailer 8
-
€6,858 EUR
$7,661 USD
View
Retailer 9
-
€6,889 EUR
$7,696 USD
View
Price last confirmed 7 days ago
Retailer 10
-
€6,995 EUR
$7,815 USD
View
Price last confirmed 7 days ago
Retailer 11
-
€7,036 EUR
$7,860 USD
View
Price last confirmed 8 days ago
B
Retailer 12
-
€7,487 EUR
View
B
Retailer 13
-
€7,948 EUR
$8,880 USD
View
B
Retailer 14
-
€8,389 EUR
ZAR 151,405 ZAR
View
B
Retailer 15
-
€9,382 EUR
£8,253 GBP
View
Most Expensive
B
NZ Jewellers
ae27c0d4-f803-44aa-b296-c81b4670f206 · Oct 27
€11,522 EUR
$12,872 USD
View
15 more retailers have this diamond
Prices start from €5,829 EURSave up to €5,693 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
€5,829 EUR