Round|Natural|HRD

5.10ct E SI2 Round Natural Diamond

EX • E/SI2 • HRD 210000215054

Shape and cutting style on the report: Brilliant

Certificate HRD 210000215054

Diamond specifications and retailer prices

From $161,591 NZD
$91,073 USD
As of October 30, 2026
Save $97,361 NZD (38%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $258,952 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 5.1ct natural round diamond

This 5.1ct natural round sits in the over five carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by HRD 210000215054. Listed at 10 retailers as of October 29, 2026, with prices from $161,591 to $258,952, a $97,361 spread on the same certified stone. MOH London lists it at $258,952. 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

5.10
Carat
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle35°
Pavilion angle41.1°
OriginNatural
Grading LabHRD
CertificateHRD 210000215054
Dimensions10.99 × 11.00 × 6.83 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
10.99 mm11.00 mm5.10 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateHRD 210000215054
Side View
Table 58.0%Crown 35°Girdle: MediumPavilion 41.1°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: $258,952 NZD|Low: $111,489 NZD|High: $260,676 NZD|Avg: $181,347 NZD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 3$111,489 NZD
Retailer 6$161,591 NZD
Retailer 10$164,974 NZD
Retailer 4$166,875 NZD
Retailer 7$171,795 NZD
Retailer 11$182,045 NZD
Retailer 5$189,630 NZD
Retailer 9$197,215 NZD
Retailer 2$200,112 NZD
Retailer 8$204,800 NZD
MOH London$258,952 NZD

27 data points across 11 retailers

10 retailers$161,591 NZD to $258,952 NZD

A
Cheapest Retailer
-
$161,591 NZD
$91,073 USD
A
Retailer 2
-
$164,974 NZD
$92,980 USD
View
A
Retailer 3
-
$166,875 NZD
$94,051 USD
View
Final sale: no returns
A
Retailer 4
-
$171,795 NZD
$96,824 USD
View
A
Retailer 5
-
$182,045 NZD
$102,601 USD
View
A
Retailer 6
-
$189,630 NZD
$106,876 USD
View
B+
Retailer 7
-
$197,215 NZD
$111,151 USD
View
B+
Retailer 8
-
$200,112 NZD
€107,413 EUR
View
B+
Retailer 9
-
$204,800 NZD
$115,426 USD
View
Most Expensive
B
MOH London
CB616D671 · Oct 29
$258,952 NZD
£114,918 GBP
View
9 more retailers have this diamond
Prices start from $161,591 NZDSave up to $97,361 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
5.10ct Round
$161,591 NZD