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Round|Natural|IGI

1.51ct I I1 Round Natural Diamond

EX • I/I1 • IGI 528214305

Shape and cutting style on the report: Round brilliant

Certificate IGI 528214305

Diamond specifications and retailer prices

From $2,162 USD
As of October 30, 2026
Save $2,841 USD (57%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $5,003 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by IGI 528214305. Listed at 7 retailers as of October 30, 2026, with prices from $2,162 to $5,003, a $2,841 spread on the same certified stone. NZ Jewellers lists it at $5,003. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
I
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.5°
OriginNatural
Grading LabIGI
CertificateIGI 528214305
Dimensions7.20 × 7.25 × 4.58 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
7.20 mm7.25 mm1.51 ctI / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 528214305
Side View
Table 56.0%Crown 36.5°GirdlePavilion 40.5°Culet: NoneDepth 63.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,988 USD|Low: $1,674 USD|High: $2,988 USD|Avg: $2,423 USD|+2.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
October 30, 2026
Retailer 4$1,674 USD
Retailer 2$2,162 USD
Retailer 3$2,848 USD
Retailer 1$2,988 USD

17 data points across 4 retailers

7 retailers$2,162 USD to $5,003 USD

A
Cheapest Retailer
-
$2,162 USD
B+
Retailer 2
-
$2,393 USD
View
B+
Retailer 3
-
$2,393 USD
View
B+
Retailer 4
-
$2,504 USD
View
B+
Retailer 5
-
$2,761 USD
View
B+
Retailer 6
-
$2,988 USD
€2,846 EUR
View
Most Expensive
B
NZ Jewellers
9a5ac9b6-24dc-42a5-a52f-fd65a3a50ce6 · Oct 30
$5,003 USD
View
6 more retailers have this diamond
Prices start from $2,162 USDSave up to $2,841 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
1.51ct Round
$2,162 USD