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Heart|Natural|GIA

1.51ct D SI1 Heart Natural Diamond

VG • D/SI1 • GIA 1455697916

Certificate GIA 1455697916

Diamond specifications and retailer prices

From $5,925 AUD
$4,162 USD
As of November 1, 2026
Save $7,127 AUD (55%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $13,052 AUD at NZ Jewellers · As of October 30, 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 D 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 1455697916. Listed at 12 retailers as of October 30, 2026, with prices from $5,925 to $13,052, a $7,127 spread on the same certified stone. NZ Jewellers lists it at $13,052. 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
D
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 1455697916
Dimensions7.74 × 6.71 × 4.80 mm
L/W Ratio1.15
Top View
7.74 mm6.71 mm1.51 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1455697916
Side View
Table 63.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 62.0%

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 1
Current: $13,052 AUD|Low: $5,385 AUD|High: $13,052 AUD|Avg: $7,928 AUD|+1.0%
NZ Jewellers
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
Retailer 16
Retailer 17
November 2, 2026
Retailer 9$5,534 AUD
Retailer 6$5,592 AUD
Retailer 3$5,925 AUD
Retailer 4$6,099 AUD
Retailer 16$6,463 AUD
Retailer 5$6,990 AUD
Retailer 12$7,070 AUD
Retailer 13$7,070 AUD
Retailer 14$7,070 AUD
Retailer 2$7,301 AUD
Retailer 17$7,440 AUD
Retailer 15$8,157 AUD
Retailer 7$8,456 AUD
Retailer 11$9,592 AUD
Retailer 8$10,975 AUD
Retailer 10$12,430 AUD
NZ Jewellers$13,052 AUD

28 data points across 17 retailers

12 retailers$5,925 AUD to $13,052 AUD

A
Cheapest Retailer
-
$5,925 AUD
$4,162 USD
A
Retailer 2
-
$6,099 AUD
$4,284 USD
View
A
Retailer 3
-
$6,463 AUD
$4,540 USD
View
Final sale: no returns
A
Retailer 4
-
$6,990 AUD
$4,910 USD
View
A
Retailer 5
-
$7,070 AUD
$4,966 USD
View
A
Retailer 6
-
$7,070 AUD
$4,966 USD
View
A
Retailer 7
-
$7,301 AUD
£4,038 GBP
View
A
Retailer 8
-
$7,440 AUD
$5,226 USD
View
B+
Retailer 9
-
$8,157 AUD
$5,730 USD
View
B+
Retailer 10
-
$9,592 AUD
ZAR 108,856 ZAR
View
B
Retailer 11
-
$12,430 AUD
£6,875 GBP
View
Most Expensive
B
NZ Jewellers
37560a22-5da5-452b-8057-d2a5406fbd8e · Oct 30
$13,052 AUD
$9,168 USD
View
11 more retailers have this diamond
Prices start from $5,925 AUDSave up to $7,127 AUD

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
$5,925 AUD