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Heart|Natural|GIA

1.37ct F SI2 Heart Natural Diamond

EX • F/SI2 • GIA 2231522138

Certificate GIA 2231522138

Diamond specifications and retailer prices

From $5,471 AUD
As of November 5, 2026
Save $6,730 AUD (55%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $12,201 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2231522138. Listed at 16 retailers as of November 5, 2026, with prices from $5,471 to $12,201, a $6,730 spread on the same certified stone. NZ Jewellers lists it at $12,201. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

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

Specifications

Cut (retailer stated)Excellent
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2231522138
Dimensions7.84 × 8.31 × 3.88 mm
L/W Ratio1.06
Culet sizeVery Small
Top View
7.84 mm8.31 mm1.37 ctF / SI2
OriginNatural
CutExcellent
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 2231522138
Side View
Table 59.0%CrownGirdle: ETN-STKPavilionCulet: Very SmallDepth 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 5
Current: $12,201 AUD|Low: $5,581 AUD|High: $12,201 AUD|Avg: $7,719 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 8$5,581 AUD
Retailer 9$6,344 AUD
Retailer 11$6,344 AUD
Retailer 12$6,344 AUD
Retailer 10$6,692 AUD
Retailer 2$6,894 AUD
Retailer 3$7,321 AUD
Retailer 5$7,370 AUD
Retailer 6$7,452 AUD
Retailer 4$7,734 AUD
Retailer 7$11,122 AUD
NZ Jewellers$12,201 AUD

45 data points across 12 retailers

16 retailers$5,471 AUD to $12,201 AUD

B+
Cheapest Retailer
-
$5,471 AUD
B+
Retailer 2
-
$5,581 AUD
View
B+
Retailer 3
-
$5,794 AUD
View
B+
Retailer 4
-
$5,988 AUD
View
Retailer 5
-
$6,344 AUD
View
Price last confirmed 9 days ago
B
Retailer 6
-
$6,344 AUD
View
B
Retailer 7
-
$6,344 AUD
View
B
Retailer 8
-
$6,692 AUD
View
B
Retailer 9
-
$6,894 AUD
View
B
Retailer 10
-
$6,909 AUD
View
B
Retailer 11
-
$7,321 AUD
View
B
Retailer 12
-
$7,370 AUD
View
B
Retailer 13
-
$7,452 AUD
View
Retailer 14
-
$7,734 AUD
View
Price last confirmed 15 days ago
B
Retailer 15
-
$11,122 AUD
View
Most Expensive
C
NZ Jewellers
feddf327-85f1-440f-a58e-59fe02c2a52a · Nov 5
$12,201 AUD
$8,383 USD
View
15 more retailers have this diamond
Prices start from $5,471 AUDSave up to $6,730 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
$5,471 AUD