CaratHunter
Plans
Heart|Natural|GIA

0.51ct I VS2 Heart Natural Diamond

EX • I/VS2 • GIA 6511367878

Certificate GIA 6511367878

Diamond specifications and retailer prices

From $1,076 AUD
As of November 6, 2026
Save $307 AUD (22%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,325 AUD at MOH London · As of October 11, 2026
View at MOH London

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter carat band, graded I colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6511367878. Listed at 16 retailers as of November 6, 2026, with a 29% 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

0.51
Carat
I
Colour
VS2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.27°
Pavilion angle38.22°
OriginNatural
Grading LabGIA
CertificateGIA 6511367878
Dimensions4.90 × 5.52 × 3.15 mm
L/W Ratio1.13
Top View
4.90 mm5.52 mm0.51 ctI / VS2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6511367878
Side View
Table 58.0%Crown 37.27°Girdle: STK-THKPavilion 38.22°Culet: NoneDepth 57.0%

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 6
Current: $2,325 AUD|Low: $873 AUD|High: $3,932 AUD|Avg: $1,604 AUD|+1.0%
MOH London
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
October 14, 2026
Retailer 9$1,048 AUD
Retailer 4$1,115 AUD
Retailer 13$1,137 AUD
Retailer 11$1,180 AUD
Retailer 12$1,246 AUD
Retailer 7$1,257 AUD
Retailer 6$1,271 AUD
Retailer 3$1,311 AUD
Retailer 2$1,383 AUD
Retailer 5$1,441 AUD
Retailer 10$1,885 AUD
Retailer 8$1,933 AUD
MOH London$2,325 AUD
Retailer 14$3,932 AUD

21 data points across 14 retailers

16 retailers$1,076 AUD to $1,383 AUD

B+
Cheapest Retailer
-
$1,076 AUD
Retailer 2
-
$1,115 AUD
View
Price last confirmed 25 days ago
Retailer 3
-
$1,137 AUD
View
Price last confirmed 26 days ago
Retailer 4
-
$1,137 AUD
View
Price last confirmed 29 days ago
Retailer 5
-
$1,180 AUD
View
Price last confirmed 36 days ago
B+
Retailer 6
-
$1,246 AUD
View
Retailer 7
-
$1,257 AUD
View
Price last confirmed 25 days ago
Retailer 8
-
$1,288 AUD
View
Price last confirmed 26 days ago
Retailer 9
-
$1,311 AUD
View
Price last confirmed 28 days ago
B
Retailer 10
-
$1,339 AUD
View
B
Retailer 11
-
$1,339 AUD
View
B
Retailer 12
-
$1,383 AUD
View
Retailer 13
-
$1,885 AUD
View
Price last confirmed 33 days ago
Retailer 14
-
$1,933 AUD
View
Price last confirmed 26 days ago
Most Expensive
MOH London
131244D33 · Oct 11
$2,325 AUD
£1,258 GBP
View
Price last confirmed 26 days ago
14 more retailers have this diamond
Prices start from $1,076 AUDSave up to $307 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+
0.51ct Heart
$1,076 AUD