Heart|Natural|GIA

0.51ct G VS1 Heart Natural Diamond

ID • G/VS1 • GIA 6545690492

Certificate GIA 6545690492

Diamond specifications and retailer prices

From $1,137 NZD
$638 USD
As of October 28, 2026
Save $1,332 NZD (54%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $4,203 NZD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 0.51ct natural heart diamond

This 0.51ct natural heart sits in the half to three-quarter carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545690492. Listed at 22 retailers as of October 28, 2026, with a 117% 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
G
Colour
VS1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.4°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 6545690492
Dimensions4.97 × 5.56 × 3.29 mm
L/W Ratio1.12
Top View
4.97 mm5.56 mm0.51 ctG / VS1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6545690492
Side View
Table 57.0%Crown 35.4°Girdle: MED-THKPavilion 40.2°Culet: NoneDepth 59.2%

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: Oct 28
Current: $2,468 NZD|Low: $1,137 NZD|High: $2,484 NZD|Avg: $1,613 NZD|+0.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 3$1,137 NZD
Retailer 2$1,211 NZD
Retailer 9$1,236 NZD
Retailer 8$1,259 NZD
Retailer 11$1,340 NZD
Retailer 4$1,525 NZD
Retailer 5$1,599 NZD
Retailer 12$1,648 NZD
Retailer 6$1,679 NZD
Retailer 10$2,015 NZD
Retailer 7$2,063 NZD
Retailer 1$2,468 NZD

44 data points across 12 retailers

22 retailers$1,137 NZD to $2,468 NZD

A
Cheapest Retailer
-
$1,137 NZD
$638 USD
A
Retailer 2
-
$1,211 NZD
$680 USD
View
A
Retailer 3
-
$1,236 NZD
$694 USD
View
Final sale: no returns
A
Retailer 4
-
$1,259 NZD
SGD 955 SGD
View
B+
Retailer 5
-
$1,340 NZD
$752 USD
View
B+
Retailer 6
-
$1,340 NZD
$752 USD
View
Price last confirmed 30 days ago
B+
Retailer 7
-
$1,340 NZD
$752 USD
View
B+
Retailer 8
-
$1,361 NZD
$764 USD
View
B+
Retailer 9
-
$1,391 NZD
$781 USD
View
B+
Retailer 10
-
$1,546 NZD
$868 USD
View
Price last confirmed 52 days ago
B+
Retailer 11
-
$1,546 NZD
$868 USD
View
Price last confirmed 30 days ago
B+
Retailer 12
-
$1,546 NZD
$868 USD
View
B+
Retailer 13
-
$1,576 NZD
$885 USD
View
B+
Retailer 14
-
$1,599 NZD
£707 GBP
View
B+
Retailer 15
-
$1,648 NZD
$925 USD
View
B+
Retailer 16
-
$1,679 NZD
£742 GBP
View
B+
Retailer 17
-
$1,805 NZD
$1,013 USD
View
B
Retailer 18
-
$2,015 NZD
A$1,740 AUD
View
Price last confirmed 24 days ago
B
Retailer 19
-
$2,063 NZD
ZAR 18,709 ZAR
View
B
Retailer 20
-
$2,468 NZD
£1,091 GBP
View
B
Retailer 21
-
$4,203 NZD
$2,359 USD
View
Price under review
Most Expensive
B
NZ Jewellers
c492312d-21de-4336-ac58-0ecb06a2c327 · Oct 27
$4,203 NZD
$2,359 USD
View
Price under review
21 more retailers have this diamond
Prices start from $1,137 NZDSave up to $1,332 NZD

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 Heart
$1,137 NZD