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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 $5,809 SGD
$4,544 USD
As of October 31, 2026
Save $7,369 SGD (56%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $13,178 SGD 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 $5,809 to $13,178, a $7,369 spread on the same certified stone. NZ Jewellers lists it at $13,178. 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: $13,178 SGD|Low: $6,039 SGD|High: $13,178 SGD|Avg: $8,354 SGD
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$6,271 SGD
Retailer 15$6,398 SGD
Retailer 3$6,588 SGD
Retailer 5$7,137 SGD
Retailer 8$7,137 SGD
Retailer 11$7,137 SGD
Retailer 10$7,559 SGD
Retailer 2$7,581 SGD
Retailer 6$7,722 SGD
Retailer 4$7,830 SGD
Retailer 14$8,235 SGD
Retailer 7$8,389 SGD
Retailer 13$8,610 SGD
Retailer 12$9,680 SGD
Retailer 9$11,607 SGD
NZ Jewellers$13,178 SGD

37 data points across 16 retailers

22 retailers$5,809 SGD to $13,178 SGD

B+
Cheapest Retailer
-
$5,809 SGD
$4,544 USD
B+
Retailer 2
-
$6,226 SGD
$4,870 USD
View
B+
Retailer 3
-
$6,271 SGD
$4,905 USD
View
B+
Retailer 4
-
$6,398 SGD
$5,005 USD
View
B
Retailer 5
-
$6,588 SGD
$5,153 USD
View
Final sale: no returns
B
Retailer 6
-
$6,680 SGD
$5,225 USD
View
B
Retailer 7
-
$7,137 SGD
$5,583 USD
View
Retailer 8
-
$7,137 SGD
$5,583 USD
View
Price last confirmed 16 days ago
Retailer 9
-
$7,137 SGD
$5,583 USD
View
Price last confirmed 16 days ago
B+
Retailer 10
-
$7,559 SGD
£4,656 GBP
View
B
Retailer 11
-
$7,581 SGD
£4,669 GBP
View
B
Retailer 12
-
$7,722 SGD
$6,040 USD
View
Retailer 13
-
$7,830 SGD
A$9,422 AUD
View
Price last confirmed 28 days ago
B
Retailer 14
-
$8,235 SGD
$6,442 USD
View
B
Retailer 15
-
$8,246 SGD
$6,450 USD
View
B
Retailer 16
-
$8,246 SGD
$6,450 USD
View
B
Retailer 17
-
$8,389 SGD
$6,562 USD
View
B
Retailer 18
-
$8,527 SGD
$6,670 USD
View
B
Retailer 19
-
$8,610 SGD
€6,414 EUR
View
B
Retailer 20
-
$9,680 SGD
ZAR 122,326 ZAR
View
B
Retailer 21
-
$11,607 SGD
£7,149 GBP
View
Most Expensive
C
NZ Jewellers
71a33d73-c09d-4c13-92b7-697e3f4d6ae0 · Oct 30
$13,178 SGD
$10,308 USD
View
21 more retailers have this diamond
Prices start from $5,809 SGDSave up to $7,369 SGD

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
$5,809 SGD