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Oval|Natural|GIA

1.51ct K SI1 Oval Natural Diamond

VG • K/SI1 • GIA 2556943966

Certificate GIA 2556943966

Diamond specifications and retailer prices

From $4,764 NZD
As of November 6, 2026
Save $6,655 NZD (58%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $11,419 NZD at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2556943966. Listed at 19 retailers as of November 2, 2026, with prices from $4,764 to $11,419, a $6,655 spread on the same certified stone. NZ Jewellers lists it at $11,419. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
K
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle35.7°
OriginNatural
Grading LabGIA
CertificateGIA 2556943966
Dimensions9.28 × 6.49 × 3.87 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizeNone
Top View
9.28 mm6.49 mm1.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556943966
Side View
Table 59.0%Crown 35.8°Girdle: MED-THKPavilion 35.7°Culet: NoneDepth 59.7%

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: $11,419 NZD|Low: $4,647 NZD|High: $11,419 NZD|Avg: $6,382 NZD|+2.5%
NZ Jewellers
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
Retailer 17
Retailer 18
Retailer 19
November 5, 2026
Retailer 9$4,764 NZD
Retailer 3$4,964 NZD
Retailer 11$5,042 NZD
Retailer 12$5,206 NZD
Retailer 18$5,257 NZD
Retailer 7$5,473 NZD
Retailer 8$5,480 NZD
Retailer 5$5,745 NZD
Retailer 10$5,792 NZD
Retailer 17$5,938 NZD
Retailer 14$6,090 NZD
Retailer 4$6,377 NZD
Retailer 15$6,380 NZD
Retailer 2$6,783 NZD
Retailer 6$6,851 NZD
Retailer 16$7,205 NZD
Retailer 19$8,056 NZD
Retailer 13$10,932 NZD
NZ Jewellers$11,419 NZD

26 data points across 19 retailers

19 retailers$4,764 NZD to $11,419 NZD

A
Cheapest Retailer
-
$4,764 NZD
A
Retailer 2
-
$4,964 NZD
View
Retailer 3
-
$5,042 NZD
View
Price last confirmed 16 days ago
A
Retailer 4
-
$5,206 NZD
View
A
Retailer 5
-
$5,257 NZD
View
A
Retailer 6
-
$5,473 NZD
View
B+
Retailer 7
-
$5,480 NZD
View
Final sale: no returns
A
Retailer 8
-
$5,745 NZD
View
Retailer 9
-
$5,792 NZD
View
Price last confirmed 8 days ago
A
Retailer 10
-
$5,938 NZD
View
A
Retailer 11
-
$6,090 NZD
View
A
Retailer 12
-
$6,377 NZD
View
A
Retailer 13
-
$6,380 NZD
View
B+
Retailer 14
-
$6,783 NZD
View
B+
Retailer 15
-
$6,851 NZD
View
B+
Retailer 16
-
$7,205 NZD
View
B+
Retailer 17
-
$8,056 NZD
View
B
Retailer 18
-
$10,932 NZD
View
Most Expensive
B
NZ Jewellers
de770bf7-1717-4e9e-b9a1-0ad4fe41ab3b · Nov 2
$11,419 NZD
$6,330 USD
View
18 more retailers have this diamond
Prices start from $4,764 NZDSave up to $6,655 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 Oval
$4,764 NZD