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Round|Natural|GIA

1.51ct K VVS2 Round Natural Diamond

EX • K/VVS2 • GIA 6505211840

Certificate GIA 6505211840

Diamond specifications and retailer prices

From $11,878 AUD
As of November 4, 2026
Save $8,417 AUD (41%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $21,716 AUD at NZ Jewellers · As of September 21, 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 K colour (faint-tinted) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by GIA 6505211840. Listed at 14 retailers as of November 4, 2026, with a 71% 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
K
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6505211840
Dimensions7.30 × 7.26 × 4.57 mm
L/W Ratio1.01
Star length45%
Lower girdle75%
Top View
7.30 mm7.26 mm1.51 ctK / VVS2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6505211840
Side View
Table 60.0%Crown 35°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.8%

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: Nov 4
Current: $15,939 AUD|Low: $11,878 AUD|High: $20,595 AUD|Avg: $15,006 AUD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 9$11,878 AUD
Retailer 11$12,199 AUD
Retailer 2$12,224 AUD
Retailer 12$12,921 AUD
Retailer 3$13,029 AUD
Retailer 10$13,138 AUD
Retailer 5$14,016 AUD
Retailer 1$15,939 AUD
Retailer 7$16,291 AUD
Retailer 4$17,148 AUD
Retailer 6$19,009 AUD
Retailer 8$20,295 AUD

26 data points across 12 retailers

14 retailers$11,878 AUD to $20,295 AUD

B+
Cheapest Retailer
-
$11,878 AUD
B+
Retailer 2
-
$12,199 AUD
View
B
Retailer 3
-
$12,224 AUD
View
B
Retailer 4
-
$12,921 AUD
View
B
Retailer 5
-
$13,138 AUD
View
B
Retailer 6
-
$14,016 AUD
View
Retailer 7
-
$14,116 AUD
View
Price last confirmed 49 days ago
B
Retailer 8
-
$15,939 AUD
View
Retailer 9
-
$16,288 AUD
View
Price last confirmed 45 days ago
B
Retailer 10
-
$16,291 AUD
View
Retailer 11
-
$17,148 AUD
View
Price last confirmed 14 days ago
B
Retailer 12
-
$19,009 AUD
View
B
Retailer 13
-
$20,295 AUD
View
Most Expensive
NZ Jewellers
53cedf8c-5ea4-4aba-bd15-d9546fb7b409 · Sep 21
$21,716 AUD
$15,202 USD
View
Price last confirmed 46 days ago
13 more retailers have this diamond
Prices start from $11,878 AUDSave up to $8,417 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 Round
$11,878 AUD