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Oval|Natural|IGI

1.51ct H I1 Oval Natural Diamond

H/I1 • IGI 512234553

Shape and cutting style on the report: Oval brilliant

Certificate IGI 512234553

Diamond specifications and retailer prices

From $3,836 AUD
₹256,641 INR
As of October 31, 2026
Save $2,360 AUD (38%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $9,224 AUD at NZ Jewellers · As of September 28, 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 H colour (near-colourless) and I1 clarity (included) and certified by IGI 512234553. Listed at 5 retailers as of October 31, 2026, with a 62% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
H
Colour
I1
Clarity
-
Cut

Specifications

Cut
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle45°
Pavilion angle38.9°
OriginNatural
Grading LabIGI
CertificateIGI 512234553
Dimensions8.16 × 6.34 × 4.19 mm
L/W Ratio1.29
Girdle conditionFaceted
Culet sizePointed
Top View
8.16 mm6.34 mm1.51 ctH / I1
OriginNatural
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 512234553
Side View
Table 58.0%Crown 45°Girdle: STK-VTKPavilion 38.9°Culet: NoneDepth 66.1%

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: $9,224 AUD|Low: $3,826 AUD|High: $9,224 AUD|Avg: $6,156 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 3$3,836 AUD
Retailer 5$5,294 AUD
Retailer 4$6,109 AUD
Retailer 2$6,196 AUD
Retailer 6$6,300 AUD
NZ Jewellers$9,224 AUD

42 data points across 6 retailers

5 retailers$3,836 AUD to $6,196 AUD

B+
Cheapest Retailer
-
$3,836 AUD
₹256,641 INR
Retailer 2
-
$5,294 AUD
$3,719 USD
View
Price last confirmed 37 days ago
Retailer 3
-
$6,109 AUD
$4,291 USD
View
Price last confirmed 41 days ago
B+
Retailer 4
-
$6,196 AUD
€4,145 EUR
View
Most Expensive
NZ Jewellers
2f9bf14d-0ccb-4224-80d8-f750597d51f6 · Sep 28
$9,224 AUD
$6,479 USD
View
Price last confirmed 35 days ago
4 more retailers have this diamond
Prices start from $3,836 AUDSave up to $2,360 AUD

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
$3,836 AUD