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Round|Natural|GIA

0.37ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1508866992

Certificate GIA 1508866992

Diamond specifications and retailer prices

From $331 AUD
₹22,131 INR
As of October 31, 2026
Save $1,460 AUD (82%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,791 AUD at NZ Jewellers · As of October 30, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1508866992. Listed at 18 retailers as of October 30, 2026, with prices from $331 to $1,791, a $1,460 spread on the same certified stone. NZ Jewellers lists it at $1,791. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 1508866992
Dimensions4.67 × 4.66 × 2.83 mm
L/W Ratio1.00
Star length55%
Lower girdle75%
Girdle conditionFaceted
Key to symbols
Crystal, Feather, Cloud
Top View
4.67 mm4.66 mm0.37 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1508866992
Side View
Table 59.0%Crown 32°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 60.6%

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: $331 AUD|Low: $330 AUD|High: $1,092 AUD|Avg: $648 AUD|-3.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 1$331 AUD
Retailer 6$484 AUD
Retailer 9$502 AUD
Retailer 8$521 AUD
Retailer 2$595 AUD
Retailer 4$725 AUD
Retailer 7$749 AUD
Retailer 3$776 AUD
Retailer 5$1,085 AUD

38 data points across 9 retailers

18 retailers$331 AUD to $1,791 AUD

A
Cheapest Retailer
-
$331 AUD
₹22,131 INR
A
Retailer 2
-
$401 AUD
HK$2,200 HKD
View
A
Retailer 3
-
$443 AUD
$311 USD
View
A
Retailer 4
-
$467 AUD
$328 USD
View
Retailer 5
-
$484 AUD
$340 USD
View
Price last confirmed 14 days ago
A
Retailer 6
-
$492 AUD
SGD 467 SGD
View
A
Retailer 7
-
$504 AUD
$354 USD
View
A
Retailer 8
-
$517 AUD
View
A
Retailer 9
-
$521 AUD
$366 USD
View
A
Retailer 10
-
$595 AUD
£329 GBP
View
B+
Retailer 11
-
$629 AUD
$442 USD
View
B+
Retailer 12
-
$653 AUD
$459 USD
View
B+
Retailer 13
-
$678 AUD
$476 USD
View
B+
Retailer 14
-
$725 AUD
ZAR 8,222 ZAR
View
Retailer 15
-
$749 AUD
View
Price last confirmed 28 days ago
B+
Retailer 16
-
$776 AUD
€519 EUR
View
B
Retailer 17
-
$1,085 AUD
£600 GBP
View
Most Expensive
B
NZ Jewellers
de85f1ec-639f-4e03-a9f0-9e2fcf3c4c28 · Oct 30
$1,791 AUD
$1,258 USD
View
17 more retailers have this diamond
Prices start from $331 AUDSave up to $1,460 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
$331 AUD