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Round|Natural|GIA

1.51ct K I1 Round Natural Diamond

EX • K/I1 • GIA 5513031052

Certificate GIA 5513031052

Diamond specifications and retailer prices

From $2,112 USD
As of November 6, 2026
Save $1,235 USD (37%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $6,024 USD at NZ Jewellers · As of October 27, 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 K colour (faint-tinted) and I1 clarity (included), with a top-tier cut grade and certified by GIA 5513031052. Listed at 8 retailers as of November 5, 2026, with a 58% 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

1.51
Carat
K
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 5513031052
Dimensions7.25 × 7.31 × 4.57 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
7.25 mm7.31 mm1.51 ctK / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 5513031052
Side View
Table 58.0%Crown 35.5°Girdle: THN-STKPavilion 41°Culet: NoneDepth 62.8%

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: Nov 6
Current: $6,024 USD|Low: $2,099 USD|High: $6,024 USD|Avg: $3,284 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 3$2,112 USD
Retailer 8$2,581 USD
Retailer 7$2,792 USD
Retailer 5$2,882 USD
Retailer 4$2,992 USD
Retailer 10$3,294 USD
Retailer 6$3,325 USD
Retailer 2$3,347 USD
Retailer 9$3,428 USD
NZ Jewellers$6,024 USD

20 data points across 10 retailers

8 retailers$2,112 USD to $3,347 USD

A
Cheapest Retailer
-
$2,112 USD
B+
Retailer 2
-
$2,581 USD
View
B+
Retailer 3
-
$2,792 USD
View
Retailer 4
-
$2,882 USD
View
Price last confirmed 12 days ago
Retailer 5
-
$2,992 USD
View
Price last confirmed 12 days ago
Retailer 6
-
$3,325 USD
View
Price last confirmed 10 days ago
B+
Retailer 7
-
$3,347 USD
View
Most Expensive
NZ Jewellers
80017714-a1f8-4849-9ba3-a3837ae50363 · Oct 27
$6,024 USD
View
Price last confirmed 10 days ago
7 more retailers have this diamond
Prices start from $2,112 USDSave up to $1,235 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
$2,112 USD