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Round|Natural|IGI

1.55ct K IF Round Natural Diamond

EX • K/IF • IGI 620410438

Shape and cutting style on the report: Round brilliant

Certificate IGI 620410438

Diamond specifications and retailer prices

From $6,338 AUD
As of November 5, 2026
Save $5,820 AUD (48%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $12,158 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.55ct natural round diamond

This 1.55ct natural round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 620410438. Listed at 14 retailers as of November 5, 2026, with prices from $6,338 to $12,158, a $5,820 spread on the same certified stone. NZ Jewellers lists it at $12,158. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
K
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.3°
OriginNatural
Grading LabIGI
CertificateIGI 620410438
Dimensions7.39 × 7.35 × 4.64 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.39 mm7.35 mm1.55 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 620410438
Side View
Table 57.0%Crown 34.9°Girdle: Med.Pavilion 41.3°Culet: NoneDepth 63.0%

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 5
Current: $12,158 AUD|Low: $6,438 AUD|High: $12,158 AUD|Avg: $8,172 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 4$6,438 AUD
Retailer 2$6,715 AUD
Retailer 5$6,835 AUD
Retailer 6$7,205 AUD
Retailer 3$7,270 AUD
Retailer 12$7,270 AUD
Retailer 13$7,270 AUD
Retailer 8$7,991 AUD
Retailer 9$8,172 AUD
Retailer 11$8,387 AUD
Retailer 7$8,868 AUD
Retailer 10$11,547 AUD
NZ Jewellers$12,158 AUD

27 data points across 13 retailers

14 retailers$6,338 AUD to $12,158 AUD

A
Cheapest Retailer
-
$6,338 AUD
A
Retailer 2
-
$6,715 AUD
View
A
Retailer 3
-
$6,835 AUD
View
A
Retailer 4
-
$7,205 AUD
View
A
Retailer 5
-
$7,270 AUD
View
Retailer 6
-
$7,270 AUD
View
Price last confirmed 13 days ago
A
Retailer 7
-
$7,270 AUD
View
A
Retailer 8
-
$7,485 AUD
View
A
Retailer 9
-
$7,991 AUD
View
A
Retailer 10
-
$8,172 AUD
View
B+
Retailer 11
-
$8,387 AUD
View
B+
Retailer 12
-
$8,868 AUD
View
B
Retailer 13
-
$11,547 AUD
View
Most Expensive
B
NZ Jewellers
6f1df928-a700-43fa-88c2-d7f65a5de212 · Nov 5
$12,158 AUD
$8,511 USD
View
13 more retailers have this diamond
Prices start from $6,338 AUDSave up to $5,820 AUD

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
1.55ct Round
$6,338 AUD