Oval|Natural|GIA

1.51ct J SI1 Oval Natural Diamond

VG • J/SI1 • GIA 5516611805

Certificate GIA 5516611805

Diamond specifications and retailer prices

From $4,544 USD
As of October 31, 2026
Save $5,764 USD (56%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $10,308 USD 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 $4,544 to $10,308, a $5,764 spread on the same certified stone. NZ Jewellers lists it at $10,308. 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
Color
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

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $10,308 USD|Low: $4,724 USD|High: $10,308 USD|Avg: $6,526 USD
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 1, 2026
Retailer 16$4,905 USD
Retailer 15$5,005 USD
Retailer 3$5,153 USD
Retailer 5$5,583 USD
Retailer 8$5,583 USD
Retailer 11$5,583 USD
Retailer 10$5,913 USD
Retailer 2$5,930 USD
Retailer 6$6,040 USD
Retailer 4$6,124 USD
Retailer 14$6,442 USD
Retailer 7$6,562 USD
Retailer 13$6,735 USD
Retailer 12$7,572 USD
Retailer 9$9,079 USD
NZ Jewellers$10,308 USD

38 data points across 16 retailers

22 retailers$4,544 USD to $10,308 USD

B+
Cheapest Retailer
-
$4,544 USD
B+
Retailer 2
-
$4,870 USD
View
Retailer 3
-
$4,905 USD
View
Price last confirmed 13 days ago
B+
Retailer 4
-
$5,005 USD
View
B
Retailer 5
-
$5,153 USD
View
Final sale: no returns
B
Retailer 6
-
$5,225 USD
View
B
Retailer 7
-
$5,583 USD
View
Retailer 8
-
$5,583 USD
View
Price last confirmed 15 days ago
Retailer 9
-
$5,583 USD
View
Price last confirmed 16 days ago
B+
Retailer 10
-
$5,913 USD
£4,656 GBP
View
B
Retailer 11
-
$5,930 USD
£4,669 GBP
View
B
Retailer 12
-
$6,040 USD
View
Retailer 13
-
$6,124 USD
A$9,422 AUD
View
Price last confirmed 28 days ago
B
Retailer 14
-
$6,442 USD
View
B
Retailer 15
-
$6,450 USD
View
B
Retailer 16
-
$6,450 USD
View
B
Retailer 17
-
$6,562 USD
View
B
Retailer 18
-
$6,670 USD
View
B
Retailer 19
-
$6,735 USD
€6,414 EUR
View
B
Retailer 20
-
$7,572 USD
ZAR 122,326 ZAR
View
B
Retailer 21
-
$9,079 USD
£7,149 GBP
View
Most Expensive
C
NZ Jewellers
71a33d73-c09d-4c13-92b7-697e3f4d6ae0 · Oct 30
$10,308 USD
View
21 more retailers have this diamond
Prices start from $4,544 USDSave up to $5,764 USD

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
$4,544 USD