Round|Natural|IGI

1.55ct H IF Round Natural Diamond

EX • H/IF • IGI 758571978

Shape and cutting style on the report: Round brilliant

Certificate IGI 758571978

Diamond specifications and retailer prices

From $6,624 USD
As of October 30, 2026
Save $6,079 USD (48%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $12,703 USD at NZ Jewellers · As of October 30, 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 H colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI 758571978. Listed at 14 retailers as of October 30, 2026, with prices from $6,624 to $12,703, a $6,079 spread on the same certified stone. NZ Jewellers lists it at $12,703. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
H
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 758571978
Dimensions7.31 × 7.36 × 4.57 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.31 mm7.36 mm1.55 ctH / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 758571978
Side View
Table 58.0%Crown 36.1°Girdle: THN-STKPavilion 40.7°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
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: Oct 30
Current: $12,703 USD|Low: $6,375 USD|High: $12,703 USD|Avg: $8,082 USD
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
Retailer 14
October 31, 2026
Retailer 3$6,375 USD
Retailer 4$6,624 USD
Retailer 6$6,665 USD
Retailer 8$6,918 USD
Retailer 5$7,010 USD
Retailer 10$7,011 USD
Retailer 7$7,077 USD
Retailer 14$7,625 USD
Retailer 11$7,712 USD
Retailer 9$8,299 USD
Retailer 2$8,763 USD
Retailer 12$9,248 USD
Retailer 13$10,598 USD
NZ Jewellers$12,703 USD

16 data points across 14 retailers

14 retailers$6,624 USD to $12,703 USD

Retailer 1
-
$6,375 USD
Price last confirmed 11 days ago
A
Retailer 2
-
$6,624 USD
View
A
Retailer 3
-
$6,665 USD
View
A
Retailer 4
-
$6,918 USD
£5,447 GBP
View
A
Retailer 5
-
$7,010 USD
View
Final sale: no returns
A
Retailer 6
-
$7,011 USD
View
A
Retailer 7
-
$7,077 USD
£5,572 GBP
View
A
Retailer 8
-
$7,625 USD
View
A
Retailer 9
-
$7,712 USD
View
A
Retailer 10
-
$8,299 USD
€7,904 EUR
View
B+
Retailer 11
-
$8,763 USD
View
B+
Retailer 12
-
$9,248 USD
ZAR 149,410 ZAR
View
B+
Retailer 13
-
$10,598 USD
£8,345 GBP
View
Most Expensive
B
NZ Jewellers
f19fa746-1d69-4ce7-b7c4-89365ee7ff55 · Oct 30
$12,703 USD
View
13 more retailers have this diamond
Prices start from $6,624 USDSave up to $6,079 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
1.55ct Round
$6,624 USD