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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 $534 NZD
$301 USD
As of October 27, 2026
Save $1,547 NZD (74%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,081 NZD 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 $534 to $2,081, a $1,547 spread on the same certified stone. NZ Jewellers lists it at $2,081. 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
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: $2,081 NZD|Low: $534 NZD|High: $2,081 NZD|Avg: $879 NZD
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$534 NZD
Retailer 10$543 NZD
Retailer 12$559 NZD
Retailer 8$586 NZD
Retailer 9$605 NZD
Retailer 6$689 NZD
Retailer 11$731 NZD
Retailer 4$894 NZD
Retailer 2$1,025 NZD
Retailer 5$1,123 NZD
Retailer 3$1,260 NZD
NZ Jewellers$2,081 NZD

25 data points across 12 retailers

12 retailers$534 NZD to $2,081 NZD

A
Cheapest Retailer
-
$534 NZD
$301 USD
A
Retailer 2
-
$543 NZD
$306 USD
View
Retailer 3
-
$559 NZD
$315 USD
View
Price last confirmed 11 days ago
Retailer 4
-
$586 NZD
$330 USD
View
Price last confirmed 8 days ago
Retailer 5
-
$605 NZD
$341 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$689 NZD
£306 GBP
View
A
Retailer 7
-
$731 NZD
$412 USD
View
B+
Retailer 8
-
$894 NZD
$504 USD
View
B+
Retailer 9
-
$1,025 NZD
€550 EUR
View
B+
Retailer 10
-
$1,123 NZD
£498 GBP
View
Retailer 11
-
$1,260 NZD
£559 GBP
View
Price last confirmed 15 days ago
Most Expensive
B
NZ Jewellers
5338cdf2-69da-4b77-8b26-a82cba24c11f · Oct 26
$2,081 NZD
$1,173 USD
View
11 more retailers have this diamond
Prices start from $534 NZDSave up to $1,547 NZD

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
$534 NZD