Round|Natural|GIA

6.19ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 1236624386

Certificate GIA 1236624386

Diamond specifications and retailer prices

From £121,540 GBP
$162,850 USD
As of October 26, 2026
Save £10,014 GBP (8%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £207,924 GBP at MOH London · As of October 21, 2026
View at MOH London

About this 6.19ct natural round diamond

This 6.19ct natural round sits in the over five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1236624386. Listed at 10 retailers as of October 26, 2026, with a relatively tight 8% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

6.19
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1236624386
Dimensions11.70 × 11.61 × 7.23 mm
L/W Ratio1.01
Star length50%
Culet sizeNone
Key to symbols
Crystal, Needle
Top View
11.70 mm11.61 mm6.19 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1236624386
Side View
Table 59.0%Crown 36°GirdlePavilion 40.6°Culet: NoneDepth 62.0%

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 26
Current: £207,924 GBP|Low: £102,658 GBP|High: £209,308 GBP|Avg: £147,299 GBP|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 31, 2026
Retailer 4£102,658 GBP
Retailer 11£121,540 GBP
Retailer 2£129,090 GBP
Retailer 8£131,554 GBP
Retailer 5£138,966 GBP
Retailer 9£141,019 GBP
Retailer 10£146,172 GBP
Retailer 6£149,300 GBP
Retailer 12£153,269 GBP
Retailer 7£157,975 GBP
Retailer 3£182,590 GBP
MOH London£207,924 GBP

18 data points across 12 retailers

10 retailers£121,540 GBP to £131,554 GBP

B+
Cheapest Retailer
-
£121,540 GBP
$162,850 USD
B+
Retailer 2
-
£129,090 GBP
View
B+
Retailer 3
-
£131,554 GBP
$176,268 USD
View
Final sale: no returns
Retailer 4
-
£137,943 GBP
$184,828 USD
View
Price last confirmed 42 days ago
Retailer 5
-
£138,966 GBP
View
Price last confirmed 11 days ago
Retailer 6
-
£141,019 GBP
$188,950 USD
View
Price last confirmed 10 days ago
Retailer 7
-
£157,975 GBP
ZAR 3,419,523 ZAR
View
Price last confirmed 14 days ago
Retailer 8
-
£158,353 GBP
$212,175 USD
View
Price last confirmed 39 days ago
Retailer 9
-
£164,443 GBP
$220,336 USD
View
Price last confirmed 40 days ago
Most Expensive
MOH London
717D79F15 · Oct 21
£207,924 GBP
View
Price last confirmed 11 days ago
9 more retailers have this diamond
Prices start from £121,540 GBPSave up to £10,014 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+
6.19ct Round
£121,540 GBP