Round|Natural|GIA

5.03ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 5506566065

Certificate GIA 5506566065

Diamond specifications and retailer prices

From $173,232 NZD
$97,634 USD
As of October 30, 2026
Save $111,131 NZD (39%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $284,363 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 5.03ct natural round diamond

This 5.03ct natural round sits in the over five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5506566065. Listed at 9 retailers as of October 29, 2026, with prices from $173,232 to $284,363, a $111,131 spread on the same certified stone. MOH London lists it at $284,363. 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

5.03
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5506566065
Dimensions10.94 × 10.99 × 6.80 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
10.94 mm10.99 mm5.03 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 5506566065
Side View
Table 58.0%Crown 35.5°Girdle: Slightly Thick-MediumPavilion 41.2°Culet: NoneDepth 62.0%

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 30
Current: $284,363 NZD|Low: $173,232 NZD|High: $286,256 NZD|Avg: $206,626 NZD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 4$173,232 NZD
Retailer 6$174,207 NZD
Retailer 2$181,959 NZD
Retailer 5$203,584 NZD
Retailer 3$216,143 NZD
MOH London$284,363 NZD

37 data points across 6 retailers

9 retailers$173,232 NZD to $284,363 NZD

A
Cheapest Retailer
-
$173,232 NZD
$97,634 USD
A
Retailer 2
-
$174,207 NZD
$98,184 USD
View
A
Retailer 3
-
$181,959 NZD
£80,750 GBP
View
Retailer 4
-
$188,654 NZD
$106,326 USD
View
Price last confirmed 33 days ago
Retailer 5
-
$188,654 NZD
$106,326 USD
View
Price last confirmed 22 days ago
A
Retailer 6
-
$188,654 NZD
$106,326 USD
View
B+
Retailer 7
-
$203,584 NZD
$114,741 USD
View
B+
Retailer 8
-
$216,143 NZD
€116,018 EUR
View
Most Expensive
B+
MOH London
5C2466FB1 · Oct 29
$284,363 NZD
£126,195 GBP
View
8 more retailers have this diamond
Prices start from $173,232 NZDSave up to $111,131 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
5.03ct Round
$173,232 NZD