Round|Natural|GIA

0.37ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2558567946

Certificate GIA 2558567946

Diamond specifications and retailer prices

From $445 USD
As of October 31, 2026
Save $793 USD (64%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,809 USD 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
Color
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: $1,090 USD|Low: $515 USD|High: $1,245 USD|Avg: $799 USD|-0.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 1, 2026
Retailer 7$522 USD
Retailer 2$581 USD
Retailer 3$712 USD
Retailer 4$732 USD
Retailer 6$756 USD
Retailer 1$1,090 USD
Retailer 5$1,238 USD

43 data points across 7 retailers

18 retailers$445 USD to $1,238 USD

Retailer 1
-
$428 USD
Price last confirmed 24 days ago
Retailer 2
-
$428 USD
View
Price last confirmed 45 days ago
A
Retailer 3
-
$445 USD
View
Retailer 4
-
$461 USD
View
Price last confirmed 33 days ago
Retailer 5
-
$461 USD
View
Price last confirmed 24 days ago
Retailer 6
-
$493 USD
View
Price last confirmed 23 days ago
Retailer 7
-
$493 USD
View
Price last confirmed 40 days ago
B+
Retailer 8
-
$545 USD
View
B+
Retailer 9
-
$581 USD
£457 GBP
View
B
Retailer 10
-
$600 USD
View
B
Retailer 11
-
$705 USD
View
B+
Retailer 12
-
$712 USD
€678 EUR
View
B+
Retailer 13
-
$732 USD
ZAR 11,825 ZAR
View
Retailer 14
-
$756 USD
A$1,163 AUD
View
Price last confirmed 27 days ago
B
Retailer 15
-
$1,090 USD
£858 GBP
View
B
Retailer 16
-
$1,238 USD
£975 GBP
View
Retailer 17
-
$1,809 USD
View
Price under review
Most Expensive
NZ Jewellers
41b2673b-ec9c-4f1a-b335-e24419f65278 · Sep 21
$1,809 USD
View
Price under review
17 more retailers have this diamond
Prices start from $445 USDSave up to $793 USD

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
$445 USD