Round|Natural|GIA

1.51ct D I1 Round Natural Diamond

EX • D/I1 • GIA 6515182503

Certificate GIA 6515182503

Diamond specifications and retailer prices

From $3,546 USD
HK$27,700 HKD
As of October 31, 2026
Save $4,360 USD (55%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,906 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 D colour (colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 6515182503. Listed at 11 retailers as of October 30, 2026, with prices from $3,546 to $7,906, a $4,360 spread on the same certified stone. NZ Jewellers lists it at $7,906. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Color
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6515182503
Dimensions7.29 × 7.33 × 4.50 mm
L/W Ratio1.01
Star length55%
Lower girdle75%
Top View
7.29 mm7.33 mm1.51 ctD / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6515182503
Side View
Table 59.0%Crown 35.5°Girdle: STK-STKPavilion 40.6°Culet: NoneDepth 61.6%

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 31
Current: $7,906 USD|Low: $3,507 USD|High: $8,320 USD|Avg: $5,264 USD|-5.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 5$3,546 USD
Retailer 2$3,614 USD
Retailer 4$3,958 USD
Retailer 6$4,740 USD
Retailer 3$4,775 USD
Retailer 9$4,775 USD
Retailer 11$4,775 USD
Retailer 7$5,236 USD
Retailer 8$5,419 USD
Retailer 10$7,255 USD
NZ Jewellers$7,906 USD

45 data points across 11 retailers

11 retailers$3,546 USD to $7,906 USD

A
Cheapest Retailer
-
$3,546 USD
HK$27,700 HKD
A
Retailer 2
-
$3,614 USD
₹344,215 INR
View
A
Retailer 3
-
$3,958 USD
View
A
Retailer 4
-
$4,740 USD
View
A
Retailer 5
-
$4,775 USD
View
A
Retailer 6
-
$4,775 USD
View
A
Retailer 7
-
$4,775 USD
View
B+
Retailer 8
-
$5,236 USD
View
B+
Retailer 9
-
$5,419 USD
€5,161 EUR
View
B
Retailer 10
-
$7,255 USD
View
Most Expensive
B
NZ Jewellers
6860eb66-dc8a-4cd3-9ed8-2e23e42255fc · Oct 30
$7,906 USD
View
10 more retailers have this diamond
Prices start from $3,546 USDSave up to $4,360 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
$3,546 USD