Round|Natural|GIA

0.90ct J I1 Round Natural Diamond

EX • J/I1 • GIA 6542434678

Certificate GIA 6542434678

Diamond specifications and retailer prices

From $1,125 USD
As of October 30, 2026
Save $1,236 USD (52%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $4,218 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.9ct natural round diamond

This 0.9ct natural round sits in the just-under-one-carat band, graded J colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 6542434678. Listed at 10 retailers as of October 30, 2026, with a 110% 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

0.90
Carat
J
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle32.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6542434678
Dimensions6.21 × 6.17 × 3.80 mm
L/W Ratio1.01
Star length50%
Top View
6.21 mm6.17 mm0.90 ctJ / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6542434678
Side View
Table 60.0%Crown 32.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.4%

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 30
Current: $4,218 USD|Low: $879 USD|High: $4,218 USD|Avg: $1,798 USD|+53.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 7$1,125 USD
Retailer 3$1,255 USD
Retailer 8$1,452 USD
Retailer 4$1,567 USD
Retailer 10$1,567 USD
Retailer 9$1,603 USD
Retailer 5$1,639 USD
Retailer 11$1,808 USD
Retailer 6$1,969 USD
Retailer 2$2,361 USD
NZ Jewellers$4,218 USD

9 data points across 11 retailers

10 retailers$1,125 USD to $2,361 USD

B+
Cheapest Retailer
-
$1,125 USD
B
Retailer 2
-
$1,452 USD
View
B
Retailer 3
-
$1,567 USD
View
B
Retailer 4
-
$1,567 USD
View
B
Retailer 5
-
$1,603 USD
View
B
Retailer 6
-
$1,639 USD
View
B
Retailer 7
-
$1,808 USD
View
B
Retailer 8
-
$1,969 USD
View
B
Retailer 9
-
$2,361 USD
€2,249 EUR
View
Most Expensive
NZ Jewellers
2acc58e5-3176-4cfd-9104-4e11c9c7254c · Oct 30
$4,218 USD
View
Price under review
9 more retailers have this diamond
Prices start from $1,125 USDSave up to $1,236 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.

B+
0.90ct Round
$1,125 USD