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Round|Natural|GIA

1.51ct D I1 Round Natural Diamond

EX • D/I1 • GIA 6515182503

Certificate GIA 6515182503

Diamond specifications and retailer prices

From $6,291 NZD
HK$27,700 HKD
As of November 1, 2026
Save $7,737 NZD (55%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $14,028 NZD 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 $6,291 to $14,028, a $7,737 spread on the same certified stone. NZ Jewellers lists it at $14,028. 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
Colour
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: Nov 1
Current: $14,028 NZD|Low: $6,223 NZD|High: $14,762 NZD|Avg: $9,373 NZD|-5.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 6$6,291 NZD
Retailer 2$6,411 NZD
Retailer 5$7,023 NZD
Retailer 4$8,052 NZD
Retailer 7$8,409 NZD
Retailer 9$8,472 NZD
Retailer 3$9,075 NZD
Retailer 8$9,290 NZD
Retailer 10$12,873 NZD
NZ Jewellers$14,028 NZD

45 data points across 10 retailers

11 retailers$6,291 NZD to $14,028 NZD

A
Cheapest Retailer
-
$6,291 NZD
HK$27,700 HKD
A
Retailer 2
-
$6,411 NZD
₹344,140 INR
View
A
Retailer 3
-
$7,023 NZD
$3,958 USD
View
A
Retailer 4
-
$8,052 NZD
$4,538 USD
View
A
Retailer 5
-
$8,409 NZD
$4,740 USD
View
A
Retailer 6
-
$8,472 NZD
$4,775 USD
View
A
Retailer 7
-
$8,472 NZD
$4,775 USD
View
A
Retailer 8
-
$9,075 NZD
€4,871 EUR
View
B+
Retailer 9
-
$9,290 NZD
$5,236 USD
View
B
Retailer 10
-
$12,873 NZD
$7,255 USD
View
Most Expensive
B
NZ Jewellers
6860eb66-dc8a-4cd3-9ed8-2e23e42255fc · Oct 30
$14,028 NZD
$7,906 USD
View
10 more retailers have this diamond
Prices start from $6,291 NZDSave up to $7,737 NZD

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
$6,291 NZD