Round|Natural|GIA

1.05ct J IF Round Natural Diamond

EX • J/IF • GIA 6551906777

Certificate GIA 6551906777

Diamond specifications and retailer prices

From $3,624 USD
As of November 4, 2026
Save $3,216 USD (47%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $6,840 USD at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.05ct natural round diamond

This 1.05ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 6551906777. Listed at 6 retailers as of November 2, 2026, with prices from $3,624 to $6,840, a $3,216 spread on the same certified stone. NZ Jewellers lists it at $6,840. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.05
Carat
J
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6551906777
Dimensions6.48 × 6.43 × 4.04 mm
L/W Ratio1.01
Star length45%
Top View
6.48 mm6.43 mm1.05 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551906777
Side View
Table 57.0%Crown 35°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.6%

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: Nov 4
Current: $6,840 USD|Low: $2,865 USD|High: $6,840 USD|Avg: $4,909 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 5$3,624 USD
Retailer 6$3,691 USD
Retailer 2$4,352 USD
Retailer 3$4,489 USD
Retailer 4$6,565 USD
NZ Jewellers$6,840 USD

24 data points across 6 retailers

6 retailers$3,624 USD to $6,840 USD

B+
Cheapest Retailer
-
$3,624 USD
Final sale: no returns
B+
Retailer 2
-
$3,691 USD
View
B+
Retailer 3
-
$4,352 USD
View
B+
Retailer 4
-
$4,489 USD
View
B
Retailer 5
-
$6,565 USD
View
Most Expensive
B
NZ Jewellers
d53ba6f4-bd46-4b45-97f6-1bbb5d1006c0 · Nov 2
$6,840 USD
View
5 more retailers have this diamond
Prices start from $3,624 USDSave up to $3,216 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+
1.05ct Round
$3,624 USD