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Heart|Natural|GIA

0.51ct I IF Heart Natural Diamond

EX • I/IF • GIA 5231937122

Certificate GIA 5231937122

Diamond specifications and retailer prices

From $1,227 NZD
$690 USD
As of November 4, 2026
1 retailer carries this diamond
Only listing: $1,227 NZD at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5231937122. Listed at a single retailer as of November 4, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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
I
Colour
IF
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.12°
Pavilion angle38.55°
OriginNatural
Grading LabGIA
CertificateGIA 5231937122
Dimensions4.84 × 5.55 × 3.23 mm
L/W Ratio1.15
Top View
4.84 mm5.55 mm0.51 ctI / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5231937122
Side View
Table 58.0%Crown 36.12°Girdle: MED-VTKPavilion 38.55°Culet: NoneDepth 58.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $1,227 NZD|Low: $1,163 NZD|High: $2,083 NZD|Avg: $1,449 NZD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
May 10, 2026
Retailer 6$1,163 NZD
Brilliant Earth$1,227 NZD
Retailer 5$1,240 NZD
Retailer 3$1,343 NZD
Retailer 4$1,516 NZD
Retailer 2$2,064 NZD

6 data points across 6 retailers

1 retailer

B+
Brilliant Earth
18909914A · Nov 4
$1,227 NZD
$690 USD
View

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
$1,227 NZD