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Round|Natural|GIA

0.66ct J I1 Round Natural Diamond

EX • J/I1 • GIA 1429708826

Certificate GIA 1429708826

Diamond specifications and retailer prices

From $380 SGD
₹28,290 INR
As of November 2, 2026
Save $540 SGD (59%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,948 SGD 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 2, 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
Colour
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: $1,948 SGD|Low: $379 SGD|High: $1,948 SGD|Avg: $805 SGD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 3$380 SGD
Retailer 6$508 SGD
Retailer 4$555 SGD
Retailer 7$586 SGD
Retailer 5$738 SGD
Retailer 2$920 SGD
NZ Jewellers$1,948 SGD

44 data points across 7 retailers

9 retailers$380 SGD to $920 SGD

A
Cheapest Retailer
-
$380 SGD
₹28,290 INR
B+
Retailer 2
-
$442 SGD
HK$2,700 HKD
View
Retailer 3
-
$508 SGD
$397 USD
View
Price last confirmed 14 days ago
Retailer 4
-
$547 SGD
$428 USD
View
Price last confirmed 26 days ago
Retailer 5
-
$547 SGD
$428 USD
View
Price last confirmed 18 days ago
Retailer 6
-
$586 SGD
$458 USD
View
Price last confirmed 13 days ago
B+
Retailer 7
-
$738 SGD
$577 USD
View
B
Retailer 8
-
$920 SGD
€685 EUR
View
Most Expensive
NZ Jewellers
6f6e5b6e-d6be-4eaf-8838-811d86641dee · Oct 20
$1,948 SGD
$1,523 USD
View
Price last confirmed 13 days ago
8 more retailers have this diamond
Prices start from $380 SGDSave up to $540 SGD

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
$380 SGD