Round|Natural|GIA

0.66ct J I1 Round Natural Diamond

EX • J/I1 • GIA 1429708826

Certificate GIA 1429708826

Diamond specifications and retailer prices

From $297 USD
₹28,290 INR
As of November 2, 2026
Save $421 USD (59%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,523 USD at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 0.66ct natural round diamond

This 0.66ct natural round sits in the half to three-quarter carat band, graded J colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 1429708826. Listed at 9 retailers as of November 1, 2026, with a 142% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.66
Carat
J
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle35°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1429708826
Dimensions5.60 × 5.63 × 3.44 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
5.60 mm5.63 mm0.66 ctJ / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1429708826
Side View
Table 56.0%Crown 35°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 61.3%

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 2
Current: $1,523 USD|Low: $296 USD|High: $1,523 USD|Avg: $630 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 2$297 USD
Retailer 6$397 USD
Retailer 4$434 USD
Retailer 7$458 USD
Retailer 5$577 USD
Retailer 3$718 USD
NZ Jewellers$1,523 USD

44 data points across 7 retailers

9 retailers$297 USD to $718 USD

A
Cheapest Retailer
-
$297 USD
₹28,290 INR
B+
Retailer 2
-
$346 USD
HK$2,700 HKD
View
Retailer 3
-
$397 USD
View
Price last confirmed 13 days ago
Retailer 4
-
$428 USD
View
Price last confirmed 25 days ago
Retailer 5
-
$428 USD
View
Price last confirmed 18 days ago
Retailer 6
-
$458 USD
View
Price last confirmed 13 days ago
B+
Retailer 7
-
$577 USD
View
B
Retailer 8
-
$718 USD
€684 EUR
View
Most Expensive
NZ Jewellers
6f6e5b6e-d6be-4eaf-8838-811d86641dee · Oct 20
$1,523 USD
View
Price last confirmed 13 days ago
8 more retailers have this diamond
Prices start from $297 USDSave up to $421 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
0.66ct Round
$297 USD