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Round|Natural|GIA

4.25ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6541127304

Certificate GIA 6541127304

Diamond specifications and retailer prices

From $62,093 NZD
As of October 31, 2026
Save $44,420 NZD (42%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $106,512 NZD at MOH London · As of November 2, 2026
View at MOH London

About this 4.25ct natural round diamond

This 4.25ct natural round sits in the three to five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6541127304. Listed at 23 retailers as of October 31, 2026, with prices from $62,093 to $106,512, a $44,420 spread on the same certified stone. MOH London lists it at $106,512. 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

4.25
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6541127304
Dimensions10.40 × 10.31 × 6.40 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
10.40 mm10.31 mm4.25 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541127304
Side View
Table 60.0%Crown 33°Girdle: Slightly ThickPavilion 41.8°Culet: NoneDepth 61.9%

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: $106,512 NZD|Low: $62,093 NZD|High: $111,627 NZD|Avg: $78,482 NZD|-4.3%
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
November 6, 2026
Retailer 14$62,093 NZD
Retailer 13$62,238 NZD
Retailer 3$62,413 NZD
Retailer 2$63,325 NZD
Retailer 11$64,298 NZD
Retailer 4$66,047 NZD
Retailer 9$67,148 NZD
Retailer 8$67,627 NZD
Retailer 5$70,418 NZD
Retailer 10$72,933 NZD
Retailer 6$81,516 NZD
Retailer 7$82,290 NZD
Retailer 12$85,465 NZD
MOH London$106,512 NZD

36 data points across 14 retailers

23 retailers$62,093 NZD to $106,512 NZD

A
Cheapest Retailer
-
$62,093 NZD
A
Retailer 2
-
$62,238 NZD
View
A
Retailer 3
-
$62,413 NZD
View
A
Retailer 4
-
$63,325 NZD
View
A
Retailer 5
-
$64,298 NZD
View
A
Retailer 6
-
$66,047 NZD
View
B+
Retailer 7
-
$67,148 NZD
View
A
Retailer 8
-
$67,627 NZD
View
B+
Retailer 9
-
$70,418 NZD
View
Retailer 10
-
$70,624 NZD
View
Price last confirmed 21 days ago
B+
Retailer 11
-
$72,933 NZD
View
Retailer 12
-
$73,568 NZD
View
Price last confirmed 48 days ago
Retailer 13
-
$73,568 NZD
View
Price last confirmed 20 days ago
Retailer 14
-
$73,568 NZD
View
Price last confirmed 22 days ago
Retailer 15
-
$76,510 NZD
View
Price last confirmed 45 days ago
Retailer 16
-
$76,510 NZD
View
Price last confirmed 19 days ago
Retailer 17
-
$79,061 NZD
View
Price last confirmed 14 days ago
Retailer 18
-
$79,453 NZD
View
Price last confirmed 45 days ago
Retailer 19
-
$79,453 NZD
View
Price last confirmed 19 days ago
Retailer 20
-
$81,516 NZD
View
Price last confirmed 10 days ago
B+
Retailer 21
-
$82,290 NZD
View
B
Retailer 22
-
$85,465 NZD
View
Most Expensive
B
MOH London
5243C3FC5 · Nov 2
$106,512 NZD
£47,146 GBP
View
22 more retailers have this diamond
Prices start from $62,093 NZDSave up to $44,420 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
4.25ct Round
$62,093 NZD