Round|Natural|GIA

8.46ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 5211422577

Certificate GIA 5211422577

Diamond specifications and retailer prices

From £101,969 GBP
As of November 6, 2026
Save £49,085 GBP (32%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £190,994 GBP at MOH London · As of October 21, 2026
View at MOH London

About this 8.46ct natural round diamond

This 8.46ct natural round sits in the over five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5211422577. Listed at 16 retailers as of November 5, 2026, with a 48% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

8.46
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 5211422577
Dimensions13.20 × 13.27 × 7.97 mm
L/W Ratio1.01
Girdle conditionFaceted
Key to symbols
Cloud, Needle, Feather
Top View
13.20 mm13.27 mm8.46 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5211422577
Side View
Table 60.0%Crown 32°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 60.2%

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: Nov 6
Current: £190,994 GBP|Low: £108,224 GBP|High: £192,265 GBP|Avg: £133,228 GBP|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 2£108,224 GBP
Retailer 7£115,303 GBP
Retailer 10£116,707 GBP
Retailer 9£117,121 GBP
Retailer 13£117,144 GBP
Retailer 8£119,055 GBP
Retailer 16£122,293 GBP
Retailer 12£126,710 GBP
Retailer 4£129,551 GBP
Retailer 5£134,270 GBP
Retailer 15£139,864 GBP
Retailer 3£142,878 GBP
Retailer 14£145,111 GBP
Retailer 6£145,459 GBP
Retailer 11£151,054 GBP
MOH London£190,994 GBP

40 data points across 16 retailers

16 retailers£101,969 GBP to £151,054 GBP

B+
Cheapest Retailer
-
£101,969 GBP
B+
Retailer 2
-
£108,224 GBP
View
Retailer 3
-
£115,303 GBP
View
Price last confirmed 27 days ago
B
Retailer 4
-
£116,707 GBP
View
B
Retailer 5
-
£117,121 GBP
View
Retailer 6
-
£117,144 GBP
View
Price last confirmed 16 days ago
Retailer 7
-
£122,293 GBP
View
Price last confirmed 17 days ago
B
Retailer 8
-
£124,239 GBP
View
B
Retailer 9
-
£126,710 GBP
View
B
Retailer 10
-
£129,551 GBP
View
Retailer 11
-
£134,270 GBP
View
Price last confirmed 21 days ago
Retailer 12
-
£139,864 GBP
View
Price last confirmed 22 days ago
Retailer 13
-
£145,111 GBP
View
Price last confirmed 20 days ago
Retailer 14
-
£145,459 GBP
View
Price last confirmed 17 days ago
B
Retailer 15
-
£151,054 GBP
View
Most Expensive
MOH London
4873F04B0 · Oct 21
£190,994 GBP
View
Price under review
15 more retailers have this diamond
Prices start from £101,969 GBPSave up to £49,085 GBP

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+
8.46ct Round
£101,969 GBP