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Round|Natural|IGI

1.51ct I VVS1 Round Natural Diamond

VG • I/VVS1 • IGI 646462155

Shape and cutting style on the report: Round brilliant

Certificate IGI 646462155

Diamond specifications and retailer prices

From $5,225 AUD
As of November 6, 2026
Save $6,433 AUD (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $11,658 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI 646462155. Listed at 17 retailers as of November 5, 2026, with prices from $5,225 to $11,658, a $6,433 spread on the same certified stone. NZ Jewellers lists it at $11,658. 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
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle38.6°
Pavilion angle40.2°
OriginNatural
Grading LabIGI
CertificateIGI 646462155
Dimensions7.15 × 7.04 × 4.60 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Top View
7.15 mm7.04 mm1.51 ctI / VVS1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 646462155
Side View
Table 57.0%Crown 38.6°Girdle: ThickPavilion 40.2°Culet: NoneDepth 64.6%

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: Nov 6
Current: $11,658 AUD|Low: $5,225 AUD|High: $11,658 AUD|Avg: $7,221 AUD
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 6, 2026
Retailer 2$5,225 AUD
Retailer 16$5,669 AUD
Retailer 8$5,836 AUD
Retailer 9$6,175 AUD
Retailer 17$6,324 AUD
Retailer 10$6,624 AUD
Retailer 11$6,672 AUD
Retailer 4$6,690 AUD
Retailer 5$6,690 AUD
Retailer 6$6,690 AUD
Retailer 7$6,909 AUD
Retailer 13$7,485 AUD
Retailer 14$7,523 AUD
Retailer 3$7,721 AUD
Retailer 12$8,163 AUD
Retailer 15$10,627 AUD
NZ Jewellers$11,658 AUD

22 data points across 17 retailers

17 retailers$5,225 AUD to $11,658 AUD

A
Cheapest Retailer
-
$5,225 AUD
A
Retailer 2
-
$5,669 AUD
View
A
Retailer 3
-
$5,836 AUD
View
A
Retailer 4
-
$6,175 AUD
View
Final sale: no returns
A
Retailer 5
-
$6,324 AUD
View
A
Retailer 6
-
$6,624 AUD
View
A
Retailer 7
-
$6,672 AUD
View
A
Retailer 8
-
$6,690 AUD
View
Retailer 9
-
$6,690 AUD
View
Price last confirmed 8 days ago
A
Retailer 10
-
$6,690 AUD
View
A
Retailer 11
-
$6,909 AUD
View
A
Retailer 12
-
$7,485 AUD
View
A
Retailer 13
-
$7,523 AUD
View
A
Retailer 14
-
$7,721 AUD
View
A
Retailer 15
-
$8,163 AUD
View
A
Retailer 16
-
$10,627 AUD
View
Most Expensive
B+
NZ Jewellers
14d787f4-caef-4e97-a03b-859e77defca2 · Nov 5
$11,658 AUD
$8,010 USD
View
16 more retailers have this diamond
Prices start from $5,225 AUDSave up to $6,433 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.

A
1.51ct Round
$5,225 AUD