Round|Natural|GIA

0.37ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2558567946

Certificate GIA 2558567946

Diamond specifications and retailer prices

From $634 AUD
$445 USD
As of October 31, 2026
Save $1,129 AUD (64%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,575 AUD at NZ Jewellers · As of September 21, 2026
View at NZ Jewellers

About this 0.37ct natural round diamond

This 0.37ct natural round sits in the sub-half-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2558567946. Listed at 18 retailers as of October 27, 2026, with a 178% 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

0.37
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2558567946
Dimensions4.64 × 4.66 × 2.84 mm
L/W Ratio1.00
Culet sizeNone
Top View
4.64 mm4.66 mm0.37 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2558567946
Side View
Table 55.0%Crown 32.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.1%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: $827 AUD|Low: $736 AUD|High: $1,772 AUD|Avg: $1,138 AUD|+5.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 7$743 AUD
Retailer 1$827 AUD
Retailer 2$1,010 AUD
Retailer 4$1,042 AUD
Retailer 6$1,076 AUD
Retailer 3$1,551 AUD
Retailer 5$1,763 AUD

43 data points across 7 retailers

18 retailers$634 AUD to $1,763 AUD

Retailer 1
-
$609 AUD
$428 USD
Price last confirmed 25 days ago
Retailer 2
-
$609 AUD
$428 USD
View
Price last confirmed 45 days ago
A
Retailer 3
-
$634 AUD
$445 USD
View
Retailer 4
-
$656 AUD
$461 USD
View
Price last confirmed 34 days ago
Retailer 5
-
$656 AUD
$461 USD
View
Price last confirmed 25 days ago
Retailer 6
-
$702 AUD
$493 USD
View
Price last confirmed 24 days ago
Retailer 7
-
$702 AUD
$493 USD
View
Price last confirmed 41 days ago
B+
Retailer 8
-
$776 AUD
$545 USD
View
B+
Retailer 9
-
$827 AUD
£457 GBP
View
B
Retailer 10
-
$854 AUD
$600 USD
View
B
Retailer 11
-
$1,004 AUD
$705 USD
View
B+
Retailer 12
-
$1,010 AUD
€676 EUR
View
B+
Retailer 13
-
$1,042 AUD
ZAR 11,825 ZAR
View
Retailer 14
-
$1,076 AUD
View
Price last confirmed 28 days ago
B
Retailer 15
-
$1,551 AUD
£858 GBP
View
B
Retailer 16
-
$1,763 AUD
£975 GBP
View
Retailer 17
-
$2,575 AUD
$1,809 USD
View
Price under review
Most Expensive
NZ Jewellers
41b2673b-ec9c-4f1a-b335-e24419f65278 · Sep 21
$2,575 AUD
$1,809 USD
View
Price under review
17 more retailers have this diamond
Prices start from $634 AUDSave up to $1,129 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
0.37ct Round
$634 AUD