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Round|Natural|GIA

1.25ct K I1 Round Natural Diamond

EX • K/I1 • GIA 1555077138

Certificate GIA 1555077138

Diamond specifications and retailer prices

From $2,811 NZD
As of November 4, 2026
Save $4,712 NZD (63%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $7,523 NZD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.25ct natural round diamond

This 1.25ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and I1 clarity (included), with a top-tier cut grade and certified by GIA 1555077138. Listed at 7 retailers as of November 4, 2026, with prices from $2,811 to $7,523, a $4,712 spread on the same certified stone. NZ Jewellers lists it at $7,523. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
K
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1555077138
Dimensions6.81 × 6.87 × 4.28 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Cavity, Needle, Indented Natural
Top View
6.81 mm6.87 mm1.25 ctK / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555077138
Side View
Table 58.0%Crown 36°GirdlePavilion 40.8°Culet: NoneDepth 62.6%

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 4
Current: $7,523 NZD|Low: $2,811 NZD|High: $8,147 NZD|Avg: $4,157 NZD|-6.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 6$2,811 NZD
Retailer 3$3,085 NZD
Retailer 5$3,085 NZD
Retailer 4$3,227 NZD
Retailer 7$3,560 NZD
Retailer 8$4,049 NZD
Retailer 2$4,188 NZD
NZ Jewellers$7,523 NZD

35 data points across 8 retailers

7 retailers$2,811 NZD to $7,523 NZD

A
Cheapest Retailer
-
$2,811 NZD
A
Retailer 2
-
$3,085 NZD
View
Retailer 3
-
$3,085 NZD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$3,227 NZD
View
B+
Retailer 5
-
$3,560 NZD
View
B+
Retailer 6
-
$4,188 NZD
View
Most Expensive
B
NZ Jewellers
9108a912-095e-4554-9121-00f206802627 · Nov 5
$7,523 NZD
$4,229 USD
View
6 more retailers have this diamond
Prices start from $2,811 NZDSave up to $4,712 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
1.25ct Round
$2,811 NZD