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Oval|Natural|IGI

1.51ct I VS1 Oval Natural Diamond

VG • I/VS1 • IGI 801639230

Shape and cutting style on the report: Oval brilliant

Certificate IGI 801639230

Diamond specifications and retailer prices

From $4,775 SGD
$3,735 USD
As of November 1, 2026
Save $4,967 SGD (51%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $9,741 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 I colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI 801639230. Listed at 17 retailers as of October 30, 2026, with prices from $4,775 to $9,741, a $4,967 spread on the same certified stone. NZ Jewellers lists it at $9,741. 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
I
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.1°
Pavilion angle39.1°
OriginNatural
Grading LabIGI
CertificateIGI 801639230
Dimensions8.53 × 6.33 × 4.07 mm
L/W Ratio1.35
Girdle conditionFaceted
Top View
8.53 mm6.33 mm1.51 ctI / VS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 801639230
Side View
Table 65.0%Crown 41.1°Girdle: STK-THKPavilion 39.1°Culet: NoneDepth 64.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $9,741 SGD|Low: $4,730 SGD|High: $10,088 SGD|Avg: $6,323 SGD|-3.4%
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
November 2, 2026
Retailer 4$4,775 SGD
Retailer 6$4,921 SGD
Retailer 15$4,999 SGD
Retailer 5$5,161 SGD
Retailer 10$5,195 SGD
Retailer 7$5,299 SGD
Retailer 3$5,592 SGD
Retailer 14$5,592 SGD
Retailer 17$5,592 SGD
Retailer 8$5,782 SGD
Retailer 2$5,827 SGD
Retailer 12$6,329 SGD
Retailer 16$6,452 SGD
Retailer 9$6,488 SGD
Retailer 11$6,873 SGD
Retailer 13$8,954 SGD
NZ Jewellers$9,741 SGD

36 data points across 17 retailers

17 retailers$4,775 SGD to $9,741 SGD

A
Cheapest Retailer
-
$4,775 SGD
$3,735 USD
A
Retailer 2
-
$4,921 SGD
$3,849 USD
View
A
Retailer 3
-
$4,999 SGD
$3,910 USD
View
A
Retailer 4
-
$5,161 SGD
$4,037 USD
View
Final sale: no returns
A
Retailer 5
-
$5,195 SGD
£3,200 GBP
View
A
Retailer 6
-
$5,299 SGD
$4,145 USD
View
A
Retailer 7
-
$5,592 SGD
$4,374 USD
View
A
Retailer 8
-
$5,592 SGD
$4,374 USD
View
A
Retailer 9
-
$5,592 SGD
$4,374 USD
View
A
Retailer 10
-
$5,782 SGD
$4,523 USD
View
A
Retailer 11
-
$5,827 SGD
£3,589 GBP
View
A
Retailer 12
-
$6,329 SGD
€4,715 EUR
View
A
Retailer 13
-
$6,452 SGD
$5,047 USD
View
A
Retailer 14
-
$6,488 SGD
£3,996 GBP
View
A
Retailer 15
-
$6,873 SGD
ZAR 86,856 ZAR
View
B+
Retailer 16
-
$8,954 SGD
£5,515 GBP
View
Most Expensive
B+
NZ Jewellers
5d491467-f87d-4aa0-9053-bdac64dfc9f0 · Oct 30
$9,741 SGD
$7,620 USD
View
16 more retailers have this diamond
Prices start from $4,775 SGDSave up to $4,967 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.

A
1.51ct Oval
$4,775 SGD