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Heart|Natural|GIA

1.51ct D SI1 Heart Natural Diamond

VG • D/SI1 • GIA 6442699747

Certificate GIA 6442699747

Diamond specifications and retailer prices

From $10,510 AUD
$7,383 USD
As of October 31, 2026
Save $9,965 AUD (49%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $20,476 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 6442699747. Listed at 22 retailers as of October 30, 2026, with prices from $10,510 to $20,476, a $9,965 spread on the same certified stone. NZ Jewellers lists it at $20,476. 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
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6442699747
Dimensions7.63 × 7.22 × 4.35 mm
L/W Ratio1.06
Top View
7.63 mm7.22 mm1.51 ctD / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6442699747
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 60.3%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: $13,430 AUD|Low: $10,715 AUD|High: $19,418 AUD|Avg: $14,352 AUD|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 8$10,715 AUD
Retailer 6$12,284 AUD
Retailer 1$13,430 AUD
Retailer 5$13,493 AUD
Retailer 7$13,514 AUD
Retailer 9$13,692 AUD
Retailer 4$15,481 AUD
Retailer 3$18,048 AUD
Retailer 2$19,186 AUD

45 data points across 9 retailers

22 retailers$10,510 AUD to $20,476 AUD

B+
Cheapest Retailer
-
$10,510 AUD
$7,383 USD
B+
Retailer 2
-
$10,715 AUD
$7,527 USD
View
B
Retailer 3
-
$11,444 AUD
$8,039 USD
View
B
Retailer 4
-
$11,503 AUD
$8,080 USD
View
B+
Retailer 5
-
$12,200 AUD
$8,570 USD
View
B
Retailer 6
-
$12,284 AUD
$8,629 USD
View
Final sale: no returns
B+
Retailer 7
-
$12,286 AUD
$8,630 USD
View
B
Retailer 8
-
$13,096 AUD
$9,200 USD
View
B
Retailer 9
-
$13,309 AUD
$9,349 USD
View
B
Retailer 10
-
$13,430 AUD
£7,428 GBP
View
Retailer 11
-
$13,493 AUD
View
Price last confirmed 9 days ago
B
Retailer 12
-
$13,514 AUD
$9,493 USD
View
B
Retailer 13
-
$13,692 AUD
$9,618 USD
View
B
Retailer 14
-
$14,521 AUD
$10,200 USD
View
B
Retailer 15
-
$14,521 AUD
$10,200 USD
View
B
Retailer 16
-
$15,005 AUD
$10,540 USD
View
B
Retailer 17
-
$15,356 AUD
$10,787 USD
View
B
Retailer 18
-
$15,481 AUD
€10,357 EUR
View
Retailer 19
-
$16,171 AUD
$11,359 USD
View
Price last confirmed 10 days ago
B
Retailer 20
-
$18,048 AUD
ZAR 204,814 ZAR
View
B
Retailer 21
-
$19,186 AUD
£10,612 GBP
View
Most Expensive
B
NZ Jewellers
8ff8dbb9-1d82-4301-8e57-2c050b390974 · Oct 30
$20,476 AUD
$14,383 USD
View
21 more retailers have this diamond
Prices start from $10,510 AUDSave up to $9,965 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.

B+
1.51ct Heart
$10,510 AUD