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Round|Natural|GIA

0.51ct I VVS2 Round Natural Diamond

VG • I/VVS2 • GIA 2554181815

Certificate GIA 2554181815

Diamond specifications and retailer prices

From $633 AUD
As of November 4, 2026
Save $1,453 AUD (70%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,887 AUD at NZ Jewellers · As of September 1, 2026
View at NZ Jewellers

About this 0.51ct natural round diamond

This 0.51ct natural round sits in the half to three-quarter carat band, graded I colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a very-good cut grade and certified by GIA 2554181815. Listed at 16 retailers as of November 2, 2026, with a 230% 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

0.51
Carat
I
Colour
VVS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.5°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 2554181815
Dimensions4.97 × 5.01 × 3.21 mm
L/W Ratio1.01
Top View
4.97 mm5.01 mm0.51 ctI / VVS2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2554181815
Side View
Table 57.0%Crown 38.5°Girdle: Slightly ThickPavilion 40.2°Culet: NoneDepth 64.3%

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: $2,831 AUD|Low: $614 AUD|High: $2,914 AUD|Avg: $1,304 AUD|-2.8%
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 5, 2026
Retailer 4$633 AUD
Retailer 7$674 AUD
Retailer 6$1,076 AUD
Retailer 3$1,081 AUD
Retailer 11$1,091 AUD
Retailer 2$1,095 AUD
Retailer 10$1,169 AUD
Retailer 12$1,183 AUD
Retailer 9$1,217 AUD
Retailer 5$1,393 AUD
Retailer 8$2,086 AUD
NZ Jewellers$2,831 AUD

29 data points across 12 retailers

16 retailers$633 AUD to $2,086 AUD

A
Cheapest Retailer
-
$633 AUD
Final sale: no returns
A
Retailer 2
-
$674 AUD
View
A
Retailer 3
-
$875 AUD
View
B+
Retailer 4
-
$1,076 AUD
View
B+
Retailer 5
-
$1,081 AUD
View
B+
Retailer 6
-
$1,091 AUD
View
B+
Retailer 7
-
$1,095 AUD
View
B+
Retailer 8
-
$1,169 AUD
View
B+
Retailer 9
-
$1,183 AUD
View
B+
Retailer 10
-
$1,217 AUD
View
Retailer 11
-
$1,225 AUD
View
Price last confirmed 32 days ago
B
Retailer 12
-
$1,393 AUD
View
Retailer 13
-
$1,867 AUD
View
Price last confirmed 25 days ago
B
Retailer 14
-
$2,086 AUD
View
Retailer 15
-
$2,831 AUD
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
a53309ab-21e7-45cd-bbbe-ef62babf39e5 · Sep 1
$2,887 AUD
$2,025 USD
View
Price last confirmed 64 days ago
15 more retailers have this diamond
Prices start from $633 AUDSave up to $1,453 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
0.51ct Round
$633 AUD