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Round|Natural|GIA

1.51ct I I1 Round Natural Diamond

EX • I/I1 • GIA 1553379600

Certificate GIA 1553379600

Diamond specifications and retailer prices

From $5,746 NZD
HK$25,300 HKD
As of November 1, 2026
Save $2,828 NZD (33%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $13,254 NZD at NZ Jewellers · As of October 17, 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 GIA 1553379600. Listed at 9 retailers as of November 1, 2026, with a 49% 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
I
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1553379600
Dimensions7.24 × 7.30 × 4.61 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Natural
Top View
7.24 mm7.30 mm1.51 ctI / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553379600
Side View
Table 56.0%Crown 36.5°Girdle: THN-STKPavilion 41°Culet: NoneDepth 63.4%

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: $6,066 NZD|Low: $5,700 NZD|High: $9,053 NZD|Avg: $7,192 NZD|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 3$5,746 NZD
Retailer 1$6,066 NZD
Retailer 5$6,721 NZD
Retailer 4$6,989 NZD
Retailer 2$8,574 NZD
Retailer 6$9,053 NZD

42 data points across 6 retailers

9 retailers$5,746 NZD to $8,574 NZD

A
Cheapest Retailer
-
$5,746 NZD
HK$25,300 HKD
A
Retailer 2
-
$6,066 NZD
₹325,623 INR
View
B+
Retailer 3
-
$6,989 NZD
$3,939 USD
View
Retailer 4
-
$7,608 NZD
$4,288 USD
View
Price last confirmed 17 days ago
Retailer 5
-
$7,608 NZD
$4,288 USD
View
Price last confirmed 13 days ago
Retailer 6
-
$7,608 NZD
$4,288 USD
View
Price last confirmed 17 days ago
B+
Retailer 7
-
$8,574 NZD
€4,602 EUR
View
Retailer 8
-
$8,777 NZD
$4,947 USD
View
Price last confirmed 14 days ago
Most Expensive
NZ Jewellers
ccdbccab-96f8-46cd-b103-0dcbd525b30e · Oct 17
$13,254 NZD
$7,470 USD
View
Price last confirmed 15 days ago
8 more retailers have this diamond
Prices start from $5,746 NZDSave up to $2,828 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
$5,746 NZD