Heart|Natural|GIA

0.51ct K IF Heart Natural Diamond

EX • K/IF • GIA 6545351327

Certificate GIA 6545351327

Diamond specifications and retailer prices

From $535 USD
As of November 5, 2026
12 retailers carry this diamond
Most expensive: $1,687 USD at NZ Jewellers · As of September 25, 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 K colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545351327. Listed at 12 retailers as of November 5, 2026. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
K
Color
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Pavilion angle39.1°
OriginNatural
Grading LabGIA
CertificateGIA 6545351327
Dimensions4.73 × 5.47 × 3.43 mm
L/W Ratio1.16
Top View
4.73 mm5.47 mm0.51 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6545351327
Side View
Table 57.0%CrownGirdle: THN-THKPavilion 39.1°Culet: NoneDepth 62.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: $535 USD|Low: $332 USD|High: $1,019 USD|Avg: $545 USD|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 5, 2026
Retailer 3$332 USD
Retailer 4$370 USD
Retailer 2$389 USD
Retailer 13$412 USD
Retailer 7$437 USD
Retailer 6$460 USD
Retailer 5$484 USD
Retailer 1$535 USD
Retailer 9$583 USD
Retailer 10$624 USD
Retailer 11$630 USD
Retailer 8$643 USD
Retailer 12$979 USD

30 data points across 13 retailers

12 retailers

Retailer 1
-
$332 USD
Price last confirmed 11 days ago
Retailer 2
-
$370 USD
View
Price last confirmed 15 days ago
Retailer 3
-
$412 USD
View
Price last confirmed 15 days ago
Retailer 4
-
$437 USD
View
Price last confirmed 13 days ago
Retailer 5
-
$460 USD
View
Price last confirmed 14 days ago
A
Retailer 6
-
$535 USD
View
Retailer 7
-
$583 USD
View
Price last confirmed 15 days ago
Retailer 8
-
$624 USD
View
Price last confirmed 10 days ago
Retailer 9
-
$630 USD
View
Price last confirmed 15 days ago
Retailer 10
-
$643 USD
View
Price last confirmed 17 days ago
Retailer 11
-
$979 USD
View
Price last confirmed 17 days ago
Most Expensive
NZ Jewellers
a721244d-a320-4248-95f0-142f0814ba4f · Sep 25
$1,687 USD
View
Price last confirmed 42 days ago
11 more retailers have this diamond
Prices start from $535 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
$535 USD