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Round|Natural|GIA

1.30ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2557211440

Certificate GIA 2557211440

Diamond specifications and retailer prices

From $3,255 NZD
As of November 6, 2026
Save $4,317 NZD (57%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $7,573 NZD at MOH London · As of November 4, 2026
View at MOH London

About this 1.3ct natural round diamond

This 1.3ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2557211440. Listed at 13 retailers as of November 4, 2026, with prices from $3,255 to $7,573, a $4,317 spread on the same certified stone. MOH London lists it at $7,573. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.30
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2557211440
Dimensions6.94 × 6.90 × 4.34 mm
L/W Ratio1.01
Top View
6.94 mm6.90 mm1.30 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2557211440
Side View
Table 58.0%Crown 36°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 62.7%

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: $7,573 NZD|Low: $3,232 NZD|High: $9,318 NZD|Avg: $4,982 NZD|-2.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 12$3,255 NZD
Retailer 6$3,428 NZD
Retailer 8$3,954 NZD
Retailer 13$3,976 NZD
Retailer 16$3,976 NZD
Retailer 3$4,001 NZD
Retailer 2$4,147 NZD
Retailer 9$4,531 NZD
Retailer 4$4,543 NZD
Retailer 11$4,558 NZD
Retailer 15$4,831 NZD
Retailer 10$5,290 NZD
Retailer 5$5,411 NZD
Retailer 14$6,641 NZD
MOH London$7,573 NZD
Retailer 7$8,361 NZD

30 data points across 16 retailers

13 retailers$3,255 NZD to $7,573 NZD

A
Cheapest Retailer
-
$3,255 NZD
Retailer 2
-
$3,428 NZD
View
Price last confirmed 29 days ago
A
Retailer 3
-
$3,976 NZD
View
A
Retailer 4
-
$3,976 NZD
View
A
Retailer 5
-
$4,001 NZD
View
Final sale: no returns
A
Retailer 6
-
$4,147 NZD
View
A
Retailer 7
-
$4,531 NZD
View
B+
Retailer 8
-
$4,543 NZD
View
A
Retailer 9
-
$4,558 NZD
View
B+
Retailer 10
-
$4,831 NZD
View
B+
Retailer 11
-
$5,290 NZD
View
B+
Retailer 12
-
$6,641 NZD
View
Most Expensive
B
MOH London
488879128 · Nov 4
$7,573 NZD
£3,352 GBP
View
12 more retailers have this diamond
Prices start from $3,255 NZDSave up to $4,317 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
1.30ct Round
$3,255 NZD