CaratHunter
Plans
Heart|Natural|GIA

1.37ct F SI2 Heart Natural Diamond

GD • F/SI2 • GIA 354

Certificate GIA 354

Diamond specifications and retailer prices

From $5,337 AUD
As of November 6, 2026
Save $1,381 AUD (21%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $6,718 AUD at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.37ct natural heart diamond

This 1.37ct natural heart sits in the one-and-a-quarter to one-and-a-half carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA. Listed at 3 retailers as of November 5, 2026, with prices from $5,337 to $6,718, a $1,381 spread on the same certified stone. Blue Nile lists it at $6,718. 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

1.37
Carat
F
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 354
Dimensions7.84 × 8.31 × 3.88 mm
L/W Ratio1.06
Top View
7.84 mm8.31 mm1.37 ctF / SI2
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 354
Side View
Table 59.0%CrownGirdle: XTN-STKPavilionCulet: NoneDepth 46.7%

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: Nov 6
Current: $6,718 AUD|Low: $5,337 AUD|High: $6,718 AUD|Avg: $5,717 AUD
Blue Nile
Retailer 2
Retailer 3
September 26, 2026
Retailer 2$5,337 AUD
Retailer 3$5,596 AUD
Blue Nile$6,718 AUD

2 data points across 3 retailers

3 retailers$5,337 AUD to $6,718 AUD

B+
Cheapest Retailer
-
$5,337 AUD
B
Retailer 2
-
$5,596 AUD
View
Most Expensive
B
Blue Nile
24089473 · Nov 5
$6,718 AUD
$4,616 USD
View
2 more retailers have this diamond
Prices start from $5,337 AUDSave up to $1,381 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+
1.37ct Heart
$5,337 AUD