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Heart|Natural|GIA

1.51ct F SI1 Heart Natural Diamond

VG • F/SI1 • GIA 6392388542

Certificate GIA 6392388542

Diamond specifications and retailer prices

From $16,222 AUD
$11,369 USD
As of November 1, 2026
Save $5,424 AUD (25%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $21,646 AUD at Jared · As of November 2, 2026
View at Jared

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 6392388542. Listed at 10 retailers as of November 1, 2026, with prices from $16,222 to $21,646, a $5,424 spread on the same certified stone. Jared lists it at $21,646. 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 6392388542
Dimensions7.67 × 7.05 × 3.96 mm
L/W Ratio1.09
Top View
7.67 mm7.05 mm1.51 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6392388542
Side View
Table 62.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 56.2%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $21,485 AUD|Low: $16,100 AUD|High: $21,840 AUD|Avg: $18,041 AUD|+0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 2$16,222 AUD
Retailer 4$16,250 AUD
Retailer 3$17,049 AUD
Retailer 6$17,131 AUD
Retailer 7$17,606 AUD
Retailer 5$20,057 AUD
Retailer 1$21,485 AUD

30 data points across 7 retailers

10 retailers$16,222 AUD to $21,646 AUD

B
Cheapest Retailer
-
$16,222 AUD
$11,369 USD
B
Retailer 2
-
$16,250 AUD
$11,388 USD
View
Retailer 3
-
$17,049 AUD
$11,948 USD
View
Price last confirmed 22 days ago
B
Retailer 4
-
$17,131 AUD
$12,006 USD
View
B
Retailer 5
-
$17,606 AUD
$12,339 USD
View
B
Retailer 6
-
$20,057 AUD
$14,056 USD
View
B
Retailer 7
-
$20,947 AUD
$14,680 USD
View
B
Retailer 8
-
$20,947 AUD
$14,680 USD
View
B
Retailer 9
-
$21,485 AUD
£11,856 GBP
View
Most Expensive
B
Jared
144680767 · Nov 2
$21,646 AUD
$15,170 USD
View
9 more retailers have this diamond
Prices start from $16,222 AUDSave up to $5,424 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
$16,222 AUD