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Heart|Natural|GIA

1.51ct L SI2 Heart Natural Diamond

VG • L/SI2 • GIA 1475510321

Certificate GIA 1475510321

Diamond specifications and retailer prices

From $3,427 NZD
As of November 6, 2026
Save $1,164 NZD (25%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $4,591 NZD at Ritani · As of November 6, 2026
View at Ritani

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded L colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1475510321. Listed at 5 retailers as of November 6, 2026, with prices from $3,427 to $4,591, a $1,164 spread on the same certified stone. Ritani lists it at $4,591. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
L
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1475510321
Dimensions7.91 × 6.67 × 4.06 mm
L/W Ratio1.19
Key to symbols
Crystal, Feather, Needle
Top View
7.91 mm6.67 mm1.51 ctL / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1475510321
Side View
Table 56.0%Crown 37.6°Girdle: STK-VTKPavilion 41.2°Culet: NoneDepth 60.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $4,122 NZD|Low: $3,427 NZD|High: $4,872 NZD|Avg: $4,077 NZD|+0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Ritani
November 6, 2026
Retailer 2$3,427 NZD
Retailer 4$3,850 NZD
Retailer 3$4,043 NZD
Retailer 6$4,066 NZD
Retailer 1$4,122 NZD
Ritani$4,591 NZD
Retailer 5$4,872 NZD

41 data points across 7 retailers

5 retailers$3,427 NZD to $4,591 NZD

A
Cheapest Retailer
-
$3,427 NZD
B+
Retailer 2
-
$4,043 NZD
View
B+
Retailer 3
-
$4,122 NZD
View
Retailer 4
-
$4,521 NZD
View
Price last confirmed 61 days ago
Most Expensive
B
Ritani
D-6ERDY65PV5 · Nov 6
$4,591 NZD
$2,545 USD
View
4 more retailers have this diamond
Prices start from $3,427 NZDSave up to $1,164 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
1.51ct Heart
$3,427 NZD