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Round|Natural|GIA

1.18ct J IF Round Natural Diamond

EX • J/IF • GIA 6512176143

Certificate GIA 6512176143

Diamond specifications and retailer prices

From $7,001 NZD
$3,939 USD
As of October 31, 2026
Save $5,685 NZD (45%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $13,214 NZD at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

About this 1.18ct natural round diamond

This 1.18ct 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 6512176143. Listed at 6 retailers as of October 31, 2026, with a 81% 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

1.18
Carat
J
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6512176143
Dimensions6.68 × 6.72 × 4.25 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
6.68 mm6.72 mm1.18 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6512176143
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.4%

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 31
Current: $8,136 NZD|Low: $5,538 NZD|High: $12,837 NZD|Avg: $8,586 NZD|+1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 2, 2026
Retailer 4$7,001 NZD
Retailer 5$7,106 NZD
Retailer 1$8,136 NZD
Retailer 3$8,589 NZD
Retailer 2$12,685 NZD

27 data points across 5 retailers

6 retailers$7,001 NZD to $12,685 NZD

B+
Cheapest Retailer
-
$7,001 NZD
$3,939 USD
Final sale: no returns
B+
Retailer 2
-
$7,106 NZD
$3,998 USD
View
B+
Retailer 3
-
$8,136 NZD
€4,360 EUR
View
B+
Retailer 4
-
$8,589 NZD
£3,805 GBP
View
B
Retailer 5
-
$12,685 NZD
£5,620 GBP
View
Most Expensive
NZ Jewellers
d922769b-9c5b-4499-82a7-10200cf9001b · Oct 3
$13,214 NZD
$7,435 USD
View
Price last confirmed 30 days ago
5 more retailers have this diamond
Prices start from $7,001 NZDSave up to $5,685 NZD

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+
1.18ct Round
$7,001 NZD