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Heart|Natural|GIA

1.51ct F SI1 Heart Natural Diamond

VG • F/SI1 • GIA 6551629134

Certificate GIA 6551629134

Diamond specifications and retailer prices

From $7,439 NZD
HK$32,700 HKD
As of November 2, 2026
Save $8,381 NZD (53%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $18,464 NZD at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6551629134. Listed at 17 retailers as of November 2, 2026, with a 113% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551629134
Dimensions6.72 × 7.82 × 4.99 mm
L/W Ratio1.16
Girdle conditionFaceted
Top View
6.72 mm7.82 mm1.51 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551629134
Side View
Table 56.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.8%

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: Nov 2
Current: $9,691 NZD|Low: $7,325 NZD|High: $16,260 NZD|Avg: $10,094 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
Retailer 13
Retailer 14
Retailer 15
November 3, 2026
Retailer 11$7,439 NZD
Retailer 15$7,447 NZD
Retailer 14$7,854 NZD
Retailer 13$8,305 NZD
Retailer 4$8,393 NZD
Retailer 3$8,460 NZD
Retailer 8$8,492 NZD
Retailer 6$8,638 NZD
Retailer 10$9,046 NZD
Retailer 1$9,691 NZD
Retailer 7$10,622 NZD
Retailer 2$12,210 NZD
Retailer 12$12,228 NZD
Retailer 5$15,622 NZD
Retailer 9$15,821 NZD

25 data points across 15 retailers

17 retailers$7,439 NZD to $15,821 NZD

A
Cheapest Retailer
-
$7,439 NZD
HK$32,700 HKD
A
Retailer 2
-
$7,447 NZD
$4,190 USD
View
A
Retailer 3
-
$7,854 NZD
$4,419 USD
View
A
Retailer 4
-
$8,305 NZD
$4,673 USD
View
Final sale: no returns
A
Retailer 5
-
$8,393 NZD
$4,722 USD
View
A
Retailer 6
-
$8,460 NZD
$4,760 USD
View
A
Retailer 7
-
$8,492 NZD
€4,551 EUR
View
Retailer 8
-
$8,638 NZD
$4,860 USD
View
Price last confirmed 18 days ago
B+
Retailer 9
-
$9,046 NZD
$5,090 USD
View
B+
Retailer 10
-
$9,691 NZD
£4,293 GBP
View
Retailer 11
-
$10,622 NZD
A$9,195 AUD
View
Price last confirmed 24 days ago
B+
Retailer 12
-
$11,365 NZD
A$9,838 AUD
View
B
Retailer 13
-
$12,210 NZD
ZAR 110,985 ZAR
View
B
Retailer 14
-
$12,228 NZD
$6,880 USD
View
Retailer 15
-
$15,622 NZD
$8,790 USD
View
Price last confirmed 12 days ago
B
Retailer 16
-
$15,821 NZD
£7,009 GBP
View
Most Expensive
NZ Jewellers
5751a6e1-0656-4f28-9314-4eb3e3b90e49 · Sep 25
$18,464 NZD
$10,389 USD
View
Price last confirmed 38 days ago
16 more retailers have this diamond
Prices start from $7,439 NZDSave up to $8,381 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
$7,439 NZD