Round|Natural|GIA

1.51ct H I1 Round Natural Diamond

EX • H/I1 • GIA 5513587675

Certificate GIA 5513587675

Diamond specifications and retailer prices

From $5,110 USD
As of November 1, 2026
Save $6,083 USD (54%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $11,193 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 H colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 5513587675. Listed at 11 retailers as of October 30, 2026, with prices from $5,110 to $11,193, a $6,083 spread on the same certified stone. NZ Jewellers lists it at $11,193. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
H
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 5513587675
Dimensions7.46 × 7.40 × 4.51 mm
L/W Ratio1.01
Star length55%
Lower girdle75%
Top View
7.46 mm7.40 mm1.51 ctH / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5513587675
Side View
Table 59.0%Crown 31.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 60.6%

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: Nov 1
Current: $11,193 USD|Low: $5,110 USD|High: $11,193 USD|Avg: $6,765 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
November 1, 2026
Retailer 6$5,110 USD
Retailer 8$5,288 USD
Retailer 12$5,327 USD
Retailer 7$6,063 USD
Retailer 9$6,063 USD
Retailer 11$6,063 USD
Retailer 3$6,750 USD
Retailer 4$6,750 USD
Retailer 5$6,980 USD
Retailer 10$6,996 USD
Retailer 2$7,280 USD
Retailer 13$7,979 USD
NZ Jewellers$11,193 USD

21 data points across 13 retailers

11 retailers$5,110 USD to $11,193 USD

B+
Cheapest Retailer
-
$5,110 USD
B+
Retailer 2
-
$5,288 USD
View
B
Retailer 3
-
$6,063 USD
View
B
Retailer 4
-
$6,063 USD
View
B
Retailer 5
-
$6,063 USD
View
B
Retailer 6
-
$6,750 USD
View
B
Retailer 7
-
$6,750 USD
View
B
Retailer 8
-
$6,980 USD
View
B
Retailer 9
-
$6,996 USD
View
B
Retailer 10
-
$7,280 USD
€6,933 EUR
View
Most Expensive
B
NZ Jewellers
47719a08-0a63-4386-9ef9-de956c3aea11 · Oct 30
$11,193 USD
View
10 more retailers have this diamond
Prices start from $5,110 USDSave up to $6,083 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.

B+
1.51ct Round
$5,110 USD