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Round|Natural|GIA

1.37ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2496422768

Certificate GIA 2496422768

Diamond specifications and retailer prices

From $2,120 AUD
As of November 6, 2026
Save $2,997 AUD (59%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $6,554 AUD at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

About this 1.37ct natural round diamond

This 1.37ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2496422768. Listed at 8 retailers as of November 4, 2026, with a 141% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2496422768
Dimensions7.02 × 7.08 × 4.43 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
7.02 mm7.08 mm1.37 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2496422768
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $2,120 AUD|Low: $2,120 AUD|High: $5,680 AUD|Avg: $3,637 AUD|-16.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 6, 2026
Retailer 1$2,120 AUD
Retailer 2$2,937 AUD
Retailer 5$3,368 AUD
Retailer 3$3,934 AUD
Retailer 4$5,117 AUD

31 data points across 5 retailers

8 retailers$2,120 AUD to $5,117 AUD

A
Cheapest Retailer
-
$2,120 AUD
A
Retailer 2
-
$2,937 AUD
View
Retailer 3
-
$3,136 AUD
View
Price last confirmed 29 days ago
Retailer 4
-
$3,334 AUD
View
Price last confirmed 38 days ago
A
Retailer 5
-
$3,368 AUD
View
B+
Retailer 6
-
$3,934 AUD
View
B+
Retailer 7
-
$5,117 AUD
View
Most Expensive
NZ Jewellers
1b457458-2bec-488c-8314-cdb0b4b99945 · Oct 3
$6,554 AUD
$4,588 USD
View
Price last confirmed 34 days ago
7 more retailers have this diamond
Prices start from $2,120 AUDSave up to $2,997 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
1.37ct Round
$2,120 AUD