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6.33ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 2221907697

Certificate GIA 2221907697

Diamond specifications and retailer prices

From £137,853 GBP
$184,708 USD
As of October 29, 2026
Save £88,243 GBP (39%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £226,097 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 6.33ct natural round diamond

This 6.33ct 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 2221907697. Listed at 11 retailers as of October 29, 2026, with prices from £137,853 to £226,097, a £88,243 spread on the same certified stone. MOH London lists it at £226,097. 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

6.33
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle32°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2221907697
Dimensions12.14 × 12.24 × 7.22 mm
L/W Ratio1.01
Culet sizeNone
Top View
12.14 mm12.24 mm6.33 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2221907697
Side View
Table 60.0%Crown 32°Girdle: UNDPavilion 41.6°Culet: NoneDepth 59.2%

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: Oct 29
Current: £226,097 GBP|Low: £119,999 GBP|High: £227,602 GBP|Avg: £152,386 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
November 1, 2026
Retailer 10£119,999 GBP
Retailer 6£137,853 GBP
Retailer 9£138,629 GBP
Retailer 2£140,605 GBP
Retailer 11£145,763 GBP
Retailer 8£149,046 GBP
Retailer 3£149,490 GBP
Retailer 4£149,490 GBP
Retailer 7£149,999 GBP
Retailer 12£154,475 GBP
Retailer 5£172,000 GBP
MOH London£226,097 GBP

29 data points across 12 retailers

11 retailers£137,853 GBP to £226,097 GBP

B+
Cheapest Retailer
-
£137,853 GBP
$184,708 USD
B+
Retailer 2
-
£138,629 GBP
$185,748 USD
View
B+
Retailer 3
-
£140,605 GBP
View
B+
Retailer 4
-
£145,763 GBP
$195,307 USD
View
B+
Retailer 5
-
£149,046 GBP
$199,706 USD
View
B+
Retailer 6
-
£149,490 GBP
$200,300 USD
View
B+
Retailer 7
-
£149,490 GBP
$200,300 USD
View
B+
Retailer 8
-
£149,999 GBP
$200,982 USD
View
B+
Retailer 9
-
£154,475 GBP
$206,980 USD
View
B
Retailer 10
-
£172,000 GBP
€219,487 EUR
View
Most Expensive
B
MOH London
72AA97209 · Oct 29
£226,097 GBP
View
10 more retailers have this diamond
Prices start from £137,853 GBPSave up to £88,243 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+
6.33ct Round
£137,853 GBP