Round|Natural|GIA

0.73ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 6512390405

Certificate GIA 6512390405

Diamond specifications and retailer prices

From €670 EUR
$749 USD
As of October 31, 2026
Save €663 EUR (50%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €2,280 EUR at NZ Jewellers · As of September 26, 2026
View at NZ Jewellers

About this 0.73ct natural round diamond

This 0.73ct natural round sits in the half to three-quarter carat band, graded J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6512390405. Listed at 13 retailers as of October 26, 2026, with a 99% 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

0.73
Carat
J
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6512390405
Dimensions5.75 × 5.71 × 3.59 mm
L/W Ratio1.01
Top View
5.75 mm5.71 mm0.73 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6512390405
Side View
Table 57.0%CrownGirdle: ThickPavilionCulet: NoneDepth 62.6%

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 31
Current: €870 EUR|Low: €615 EUR|High: €1,348 EUR|Avg: €858 EUR|+8.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 11€651 EUR
Retailer 7€670 EUR
Retailer 4€676 EUR
Retailer 9€738 EUR
Retailer 2€801 EUR
Retailer 10€806 EUR
Retailer 8€846 EUR
Retailer 1€870 EUR
Retailer 5€1,029 EUR
Retailer 3€1,038 EUR
Retailer 6€1,333 EUR

39 data points across 11 retailers

13 retailers€670 EUR to €1,333 EUR

A
Cheapest Retailer
-
€670 EUR
$749 USD
Final sale: no returns
A
Retailer 2
-
€676 EUR
HK$5,900 HKD
View
Retailer 3
-
€727 EUR
$812 USD
View
Price last confirmed 24 days ago
Retailer 4
-
€727 EUR
$812 USD
View
Price last confirmed 24 days ago
B+
Retailer 5
-
€738 EUR
$824 USD
View
Retailer 6
-
€755 EUR
$843 USD
View
Price last confirmed 33 days ago
B+
Retailer 7
-
€806 EUR
$900 USD
View
Retailer 8
-
€839 EUR
$937 USD
View
Price last confirmed 23 days ago
B+
Retailer 9
-
€846 EUR
$945 USD
View
B+
Retailer 10
-
€870 EUR
£766 GBP
View
B+
Retailer 11
-
€1,029 EUR
View
B
Retailer 12
-
€1,333 EUR
£1,173 GBP
View
Most Expensive
NZ Jewellers
c2f89733-606c-4710-a258-8aa54c6076f6 · Sep 26
€2,280 EUR
$2,547 USD
View
Price last confirmed 35 days ago
12 more retailers have this diamond
Prices start from €670 EURSave up to €663 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
0.73ct Round
€670 EUR