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Round|Natural|IGI

1.20ct K IF Round Natural Diamond

EX • K/IF • IGI 678521393

Shape and cutting style on the report: Round brilliant

Certificate IGI 678521393

Diamond specifications and retailer prices

From $1,642 USD
As of November 6, 2026
Save $2,065 USD (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $4,436 USD at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 678521393. Listed at 16 retailers as of November 4, 2026, with a 126% 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

1.20
Carat
K
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 678521393
Dimensions6.66 × 6.72 × 4.24 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
6.66 mm6.72 mm1.20 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 678521393
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 63.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,642 USD|Low: $1,642 USD|High: $3,761 USD|Avg: $2,449 USD|-2.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 1$1,642 USD
Retailer 8$1,916 USD
Retailer 7$2,145 USD
Retailer 2$2,331 USD
Retailer 3$2,438 USD
Retailer 4$2,589 USD
Retailer 6$2,797 USD
Retailer 5$3,707 USD

35 data points across 8 retailers

16 retailers$1,642 USD to $3,707 USD

A
Cheapest Retailer
-
$1,642 USD
A
Retailer 2
-
$1,916 USD
View
Retailer 3
-
$2,122 USD
View
Price last confirmed 25 days ago
Retailer 4
-
$2,122 USD
View
Price last confirmed 29 days ago
A
Retailer 5
-
$2,145 USD
View
Retailer 6
-
$2,181 USD
View
Price last confirmed 50 days ago
Retailer 7
-
$2,220 USD
View
Price last confirmed 38 days ago
A
Retailer 8
-
$2,331 USD
View
A
Retailer 9
-
$2,438 USD
View
Retailer 10
-
$2,448 USD
View
Price last confirmed 45 days ago
Retailer 11
-
$2,448 USD
View
Price last confirmed 28 days ago
A
Retailer 12
-
$2,589 USD
View
A
Retailer 13
-
$2,797 USD
View
B+
Retailer 14
-
$3,707 USD
View
Retailer 15
-
$4,436 USD
View
Price last confirmed 46 days ago
Most Expensive
NZ Jewellers
a764d134-97bc-4a20-87c8-da7a348b5700 · Oct 3
$4,436 USD
View
Price last confirmed 34 days ago
15 more retailers have this diamond
Prices start from $1,642 USDSave up to $2,065 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
1.20ct Round
$1,642 USD