Round|Natural|GIA

5.50ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 1226978892

Certificate GIA 1226978892

Diamond specifications and retailer prices

From $235,102 NZD
$132,504 USD
As of October 30, 2026
Save $175,916 NZD (43%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $411,018 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 5.5ct natural round diamond

This 5.5ct 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 1226978892. Listed at 6 retailers as of October 29, 2026, with prices from $235,102 to $411,018, a $175,916 spread on the same certified stone. MOH London lists it at $411,018. 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

5.50
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1226978892
Dimensions11.17 × 11.25 × 7.04 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
11.17 mm11.25 mm5.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 1226978892
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $411,018 NZD|Low: $226,711 NZD|High: $413,755 NZD|Avg: $283,239 NZD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 4$226,711 NZD
Retailer 6$235,102 NZD
Retailer 5$243,843 NZD
Retailer 2$253,028 NZD
Retailer 3$317,625 NZD
MOH London$411,018 NZD

38 data points across 6 retailers

6 retailers$235,102 NZD to $411,018 NZD

Retailer 1
-
$226,711 NZD
$127,775 USD
Price last confirmed 13 days ago
B+
Retailer 2
-
$235,102 NZD
$132,504 USD
View
Retailer 3
-
$243,843 NZD
A$211,432 AUD
View
Price last confirmed 27 days ago
B+
Retailer 4
-
$253,028 NZD
£112,289 GBP
View
B+
Retailer 5
-
$317,625 NZD
€170,490 EUR
View
Most Expensive
B
MOH London
7F3AA0852 · Oct 29
$411,018 NZD
£182,402 GBP
View
5 more retailers have this diamond
Prices start from $235,102 NZDSave up to $175,916 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.

B+
5.50ct Round
$235,102 NZD