Heart|Natural|GIA

0.51ct G VS1 Heart Natural Diamond

ID • G/VS1 • GIA 6545690492

Certificate GIA 6545690492

Diamond specifications and retailer prices

From $638 USD
As of October 28, 2026
Save $748 USD (54%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,359 USD 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
Color
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: $1,386 USD|Low: $638 USD|High: $1,394 USD|Avg: $906 USD|+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$638 USD
Retailer 2$680 USD
Retailer 9$694 USD
Retailer 8$707 USD
Retailer 11$752 USD
Retailer 4$856 USD
Retailer 5$898 USD
Retailer 12$925 USD
Retailer 6$942 USD
Retailer 10$1,131 USD
Retailer 7$1,158 USD
Retailer 1$1,386 USD

44 data points across 12 retailers

22 retailers$638 USD to $1,386 USD

A
Cheapest Retailer
-
$638 USD
A
Retailer 2
-
$680 USD
View
A
Retailer 3
-
$694 USD
View
Final sale: no returns
A
Retailer 4
-
$707 USD
SGD 955 SGD
View
B+
Retailer 5
-
$752 USD
View
B+
Retailer 6
-
$752 USD
View
Price last confirmed 30 days ago
B+
Retailer 7
-
$752 USD
View
B+
Retailer 8
-
$764 USD
View
B+
Retailer 9
-
$781 USD
View
B+
Retailer 10
-
$868 USD
View
Price last confirmed 52 days ago
B+
Retailer 11
-
$868 USD
View
Price last confirmed 30 days ago
B+
Retailer 12
-
$868 USD
View
B+
Retailer 13
-
$885 USD
View
B+
Retailer 14
-
$898 USD
£707 GBP
View
B+
Retailer 15
-
$925 USD
View
B+
Retailer 16
-
$942 USD
£742 GBP
View
B+
Retailer 17
-
$1,013 USD
View
B
Retailer 18
-
$1,131 USD
A$1,740 AUD
View
Price last confirmed 24 days ago
B
Retailer 19
-
$1,158 USD
ZAR 18,709 ZAR
View
B
Retailer 20
-
$1,386 USD
£1,091 GBP
View
B
Retailer 21
-
$2,359 USD
View
Price under review
Most Expensive
B
NZ Jewellers
c492312d-21de-4336-ac58-0ecb06a2c327 · Oct 27
$2,359 USD
View
Price under review
21 more retailers have this diamond
Prices start from $638 USDSave up to $748 USD

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
$638 USD