Round|Natural|GIA

0.73ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 6512390405

Certificate GIA 6512390405

Diamond specifications and retailer prices

From $742 USD
HK$5,800 HKD
As of October 29, 2026
Save $747 USD (50%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,547 USD 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 101% 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,147 USD|Low: $687 USD|High: $1,506 USD|Avg: $958 USD|+6.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 28, 2026
Retailer 11$727 USD
Retailer 7$742 USD
Retailer 6$749 USD
Retailer 9$824 USD
Retailer 2$895 USD
Retailer 10$900 USD
Retailer 8$945 USD
Retailer 4$966 USD
Retailer 1$1,147 USD
Retailer 3$1,160 USD
Retailer 5$1,490 USD

38 data points across 11 retailers

13 retailers$742 USD to $1,490 USD

A
Cheapest Retailer
-
$742 USD
HK$5,800 HKD
A
Retailer 2
-
$749 USD
View
Final sale: no returns
Retailer 3
-
$812 USD
View
Price last confirmed 22 days ago
Retailer 4
-
$812 USD
View
Price last confirmed 22 days ago
B+
Retailer 5
-
$824 USD
View
Retailer 6
-
$843 USD
View
Price last confirmed 30 days ago
B+
Retailer 7
-
$900 USD
View
Retailer 8
-
$937 USD
View
Price last confirmed 20 days ago
B+
Retailer 9
-
$945 USD
View
B+
Retailer 10
-
$966 USD
£761 GBP
View
B+
Retailer 11
-
$1,147 USD
€1,092 EUR
View
B
Retailer 12
-
$1,490 USD
£1,173 GBP
View
Most Expensive
NZ Jewellers
c2f89733-606c-4710-a258-8aa54c6076f6 · Sep 26
$2,547 USD
View
Price last confirmed 33 days ago
12 more retailers have this diamond
Prices start from $742 USDSave up to $747 USD

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
$742 USD