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Oval|Natural|IGI

1.51ct I SI1 Oval Natural Diamond

VG • I/SI1 • IGI 794652789

Shape and cutting style on the report: Oval brilliant

Certificate IGI 794652789

Diamond specifications and retailer prices

From $3,998 SGD
₹297,864 INR
As of October 31, 2026
Save $5,174 SGD (56%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $9,173 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 SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 794652789. Listed at 18 retailers as of October 30, 2026, with prices from $3,998 to $9,173, a $5,174 spread on the same certified stone. NZ Jewellers lists it at $9,173. 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
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41°
Pavilion angle39.7°
OriginNatural
Grading LabIGI
CertificateIGI 794652789
Dimensions9.86 × 6.09 × 3.89 mm
L/W Ratio1.62
Girdle conditionFaceted
Culet sizePointed
Top View
9.86 mm6.09 mm1.51 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 794652789
Side View
Table 60.0%Crown 41°Girdle: STK-THKPavilion 39.7°Culet: NoneDepth 63.9%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: $4,996 SGD|Low: $3,988 SGD|High: $8,899 SGD|Avg: $5,558 SGD|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 4$3,998 SGD
Retailer 8$4,860 SGD
Retailer 1$4,996 SGD
Retailer 2$5,487 SGD
Retailer 7$5,529 SGD
Retailer 5$5,593 SGD
Retailer 3$6,472 SGD
Retailer 6$8,852 SGD

28 data points across 8 retailers

18 retailers$3,998 SGD to $9,173 SGD

A
Cheapest Retailer
-
$3,998 SGD
₹297,864 INR
B+
Retailer 2
-
$4,633 SGD
$3,624 USD
View
B+
Retailer 3
-
$4,860 SGD
$3,802 USD
View
Final sale: no returns
A
Retailer 4
-
$4,996 SGD
£3,077 GBP
View
B+
Retailer 5
-
$5,011 SGD
$3,920 USD
View
B+
Retailer 6
-
$5,220 SGD
$4,083 USD
View
B+
Retailer 7
-
$5,264 SGD
$4,118 USD
View
B+
Retailer 8
-
$5,264 SGD
$4,118 USD
View
Retailer 9
-
$5,264 SGD
$4,118 USD
View
Price last confirmed 17 days ago
B+
Retailer 10
-
$5,454 SGD
$4,266 USD
View
B+
Retailer 11
-
$5,487 SGD
£3,379 GBP
View
B+
Retailer 12
-
$5,529 SGD
$4,325 USD
View
B+
Retailer 13
-
$5,593 SGD
€4,167 EUR
View
B+
Retailer 14
-
$5,791 SGD
$4,530 USD
View
B+
Retailer 15
-
$6,075 SGD
$4,752 USD
View
B+
Retailer 16
-
$6,472 SGD
ZAR 81,781 ZAR
View
B
Retailer 17
-
$8,852 SGD
£5,452 GBP
View
Most Expensive
B
NZ Jewellers
67829593-4506-4b6e-8a10-140fd6fc2704 · Oct 30
$9,173 SGD
$7,175 USD
View
17 more retailers have this diamond
Prices start from $3,998 SGDSave up to $5,174 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
$3,998 SGD