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Round|Natural|GIA

0.37ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 2566400203

Certificate GIA 2566400203

Diamond specifications and retailer prices

From $421 CAD
$301 USD
As of October 27, 2026
Save $1,220 CAD (74%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,642 CAD at NZ Jewellers · As of October 26, 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2566400203. Listed at 12 retailers as of October 26, 2026, with prices from $421 to $1,642, a $1,220 spread on the same certified stone. NZ Jewellers lists it at $1,642. 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
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2566400203
Dimensions4.57 × 4.61 × 2.86 mm
L/W Ratio1.01
Key to symbols
Crystal, Feather
Top View
4.57 mm4.61 mm0.37 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2566400203
Side View
Table 58.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.4%

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 27
Current: $1,642 CAD|Low: $421 CAD|High: $1,642 CAD|Avg: $693 CAD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 28, 2026
Retailer 7$421 CAD
Retailer 10$428 CAD
Retailer 12$441 CAD
Retailer 8$462 CAD
Retailer 9$477 CAD
Retailer 6$544 CAD
Retailer 11$577 CAD
Retailer 4$705 CAD
Retailer 2$808 CAD
Retailer 5$886 CAD
Retailer 3$994 CAD
NZ Jewellers$1,642 CAD

25 data points across 12 retailers

12 retailers$421 CAD to $1,642 CAD

A
Cheapest Retailer
-
$421 CAD
$301 USD
A
Retailer 2
-
$428 CAD
$306 USD
View
Retailer 3
-
$441 CAD
$315 USD
View
Price last confirmed 9 days ago
A
Retailer 4
-
$462 CAD
$330 USD
View
A
Retailer 5
-
$477 CAD
$341 USD
View
A
Retailer 6
-
$544 CAD
£306 GBP
View
A
Retailer 7
-
$577 CAD
$412 USD
View
B+
Retailer 8
-
$705 CAD
$504 USD
View
B+
Retailer 9
-
$808 CAD
€550 EUR
View
B+
Retailer 10
-
$886 CAD
£498 GBP
View
Retailer 11
-
$994 CAD
£559 GBP
View
Price last confirmed 12 days ago
Most Expensive
B
NZ Jewellers
5338cdf2-69da-4b77-8b26-a82cba24c11f · Oct 26
$1,642 CAD
$1,173 USD
View
11 more retailers have this diamond
Prices start from $421 CADSave up to $1,220 CAD

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
$421 CAD