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Oval|Natural|GIA

1.51ct K SI1 Oval Natural Diamond

GD • K/SI1 • GIA 1513557476

Certificate GIA 1513557476

Diamond specifications and retailer prices

From $7,816 NZD
As of November 5, 2026
Save $8,918 NZD (53%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $16,735 NZD at NZ Jewellers · As of November 5, 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 1513557476. Listed at 16 retailers as of November 5, 2026, with prices from $7,816 to $16,735, a $8,918 spread on the same certified stone. NZ Jewellers lists it at $16,735. 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
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1513557476
Dimensions9.31 × 6.62 × 3.81 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Needle, Indented Natural
Top View
9.31 mm6.62 mm1.51 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1513557476
Side View
Table 59.0%CrownGirdle: ThickPavilionCulet: NoneDepth 57.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $16,735 NZD|Low: $7,739 NZD|High: $16,735 NZD|Avg: $10,725 NZD
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
November 6, 2026
Retailer 10$7,739 NZD
Retailer 12$7,906 NZD
Retailer 11$8,437 NZD
Retailer 3$9,065 NZD
Retailer 5$9,065 NZD
Retailer 13$9,065 NZD
Retailer 7$9,665 NZD
Retailer 2$9,714 NZD
Retailer 4$10,459 NZD
Retailer 6$10,654 NZD
Retailer 8$12,207 NZD
Retailer 9$15,894 NZD
NZ Jewellers$16,735 NZD

45 data points across 13 retailers

16 retailers$7,816 NZD to $16,735 NZD

Retailer 1
-
$7,739 NZD
Price last confirmed 16 days ago
B+
Retailer 2
-
$7,816 NZD
View
B+
Retailer 3
-
$7,906 NZD
View
B+
Retailer 4
-
$8,437 NZD
View
B
Retailer 5
-
$8,523 NZD
View
Retailer 6
-
$9,065 NZD
View
Price last confirmed 8 days ago
B
Retailer 7
-
$9,065 NZD
View
B
Retailer 8
-
$9,065 NZD
View
B
Retailer 9
-
$9,550 NZD
View
B
Retailer 10
-
$9,665 NZD
View
B
Retailer 11
-
$9,714 NZD
View
B
Retailer 12
-
$10,459 NZD
View
B
Retailer 13
-
$10,654 NZD
View
B
Retailer 14
-
$12,207 NZD
View
C
Retailer 15
-
$15,894 NZD
View
Most Expensive
C
NZ Jewellers
8bc41d33-7895-43aa-8bd4-97a357c6a8eb · Nov 5
$16,735 NZD
$9,277 USD
View
15 more retailers have this diamond
Prices start from $7,816 NZDSave up to $8,918 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.

B+
1.51ct Oval
$7,816 NZD