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Oval|Natural|GIA

1.51ct J SI1 Oval Natural Diamond

VG • J/SI1 • GIA 5516611805

Certificate GIA 5516611805

Diamond specifications and retailer prices

From $8,062 NZD
$4,544 USD
As of October 31, 2026
Save $10,227 NZD (56%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $18,289 NZD at NZ Jewellers · As of October 30, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5516611805. Listed at 22 retailers as of October 30, 2026, with prices from $8,062 to $18,289, a $10,227 spread on the same certified stone. NZ Jewellers lists it at $18,289. 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
J
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.05°
Pavilion angle37.88°
OriginNatural
Grading LabGIA
CertificateGIA 5516611805
Dimensions9.72 × 6.45 × 3.75 mm
L/W Ratio1.51
Top View
9.72 mm6.45 mm1.51 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5516611805
Side View
Table 58.0%Crown 34.05°Girdle: ThickPavilion 37.88°Culet: NoneDepth 58.1%

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: Oct 31
Current: $18,289 NZD|Low: $8,382 NZD|High: $18,289 NZD|Avg: $11,588 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
Retailer 14
Retailer 15
Retailer 16
November 2, 2026
Retailer 16$8,703 NZD
Retailer 15$8,880 NZD
Retailer 3$9,143 NZD
Retailer 5$9,906 NZD
Retailer 8$9,906 NZD
Retailer 12$9,906 NZD
Retailer 10$10,491 NZD
Retailer 2$10,521 NZD
Retailer 6$10,717 NZD
Retailer 4$10,867 NZD
Retailer 14$11,430 NZD
Retailer 7$11,643 NZD
Retailer 9$11,946 NZD
Retailer 13$13,435 NZD
Retailer 11$16,109 NZD
NZ Jewellers$18,289 NZD

38 data points across 16 retailers

22 retailers$8,062 NZD to $18,289 NZD

B+
Cheapest Retailer
-
$8,062 NZD
$4,544 USD
B+
Retailer 2
-
$8,641 NZD
$4,870 USD
View
B+
Retailer 3
-
$8,703 NZD
$4,905 USD
View
B+
Retailer 4
-
$8,880 NZD
$5,005 USD
View
B
Retailer 5
-
$9,143 NZD
$5,153 USD
View
Final sale: no returns
B
Retailer 6
-
$9,271 NZD
$5,225 USD
View
B
Retailer 7
-
$9,906 NZD
$5,583 USD
View
Retailer 8
-
$9,906 NZD
$5,583 USD
View
Price last confirmed 16 days ago
Retailer 9
-
$9,906 NZD
$5,583 USD
View
Price last confirmed 17 days ago
B+
Retailer 10
-
$10,491 NZD
£4,656 GBP
View
B+
Retailer 11
-
$10,521 NZD
£4,669 GBP
View
B
Retailer 12
-
$10,717 NZD
$6,040 USD
View
Retailer 13
-
$10,867 NZD
A$9,422 AUD
View
Price last confirmed 29 days ago
B
Retailer 14
-
$11,430 NZD
$6,442 USD
View
B
Retailer 15
-
$11,444 NZD
$6,450 USD
View
B
Retailer 16
-
$11,444 NZD
$6,450 USD
View
B
Retailer 17
-
$11,643 NZD
$6,562 USD
View
B
Retailer 18
-
$11,835 NZD
$6,670 USD
View
B
Retailer 19
-
$11,946 NZD
€6,412 EUR
View
B
Retailer 20
-
$13,435 NZD
ZAR 122,326 ZAR
View
B
Retailer 21
-
$16,109 NZD
£7,149 GBP
View
Most Expensive
C
NZ Jewellers
71a33d73-c09d-4c13-92b7-697e3f4d6ae0 · Oct 30
$18,289 NZD
$10,308 USD
View
21 more retailers have this diamond
Prices start from $8,062 NZDSave up to $10,227 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
$8,062 NZD