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Round|Natural|IGI

1.51ct D VVS1 Round Natural Diamond

EX • D/VVS1 • IGI 778649425

Shape and cutting style on the report: Round brilliant

Certificate IGI 778649425

Diamond specifications and retailer prices

From $15,807 AUD
As of November 4, 2026
Save $8,148 AUD (34%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $25,726 AUD at NZ Jewellers · As of October 20, 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 D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI 778649425. Listed at 13 retailers as of November 4, 2026, with a 52% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
D
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.8°
Pavilion angle40.9°
OriginNatural
Grading LabIGI
CertificateIGI 778649425
Dimensions7.38 × 7.47 × 4.57 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.38 mm7.47 mm1.51 ctD / VVS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 778649425
Side View
Table 55.0%Crown 34.8°Girdle: THN-MEDPavilion 40.9°Culet: NoneDepth 61.7%

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 4
Current: $25,726 AUD|Low: $15,675 AUD|High: $31,526 AUD|Avg: $21,105 AUD|-1.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 4, 2026
Retailer 11$15,807 AUD
Retailer 5$16,443 AUD
Retailer 10$16,721 AUD
Retailer 9$16,976 AUD
Retailer 12$18,457 AUD
Retailer 8$18,837 AUD
Retailer 6$19,300 AUD
Retailer 3$21,297 AUD
Retailer 7$22,596 AUD
Retailer 2$23,956 AUD
NZ Jewellers$25,726 AUD
Retailer 4$31,526 AUD

36 data points across 12 retailers

13 retailers$15,807 AUD to $23,956 AUD

A
Cheapest Retailer
-
$15,807 AUD
A
Retailer 2
-
$16,443 AUD
View
A
Retailer 3
-
$16,721 AUD
View
A
Retailer 4
-
$16,976 AUD
View
Final sale: no returns
Retailer 5
-
$18,457 AUD
View
Price last confirmed 14 days ago
Retailer 6
-
$18,741 AUD
View
Price last confirmed 21 days ago
A
Retailer 7
-
$18,837 AUD
View
A
Retailer 8
-
$19,300 AUD
View
Retailer 9
-
$19,384 AUD
View
Price last confirmed 47 days ago
Retailer 10
-
$21,297 AUD
View
Price last confirmed 15 days ago
A
Retailer 11
-
$22,596 AUD
View
A
Retailer 12
-
$23,956 AUD
View
Most Expensive
NZ Jewellers
44b51075-e617-4632-8193-4a559ab3a3a8 · Oct 20
$25,726 AUD
$18,047 USD
View
Price last confirmed 15 days ago
12 more retailers have this diamond
Prices start from $15,807 AUDSave up to $8,148 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
$15,807 AUD