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Round|Natural|GIA

3.12ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 6552357165

Certificate GIA 6552357165

Diamond specifications and retailer prices

From £33,243 GBP
As of November 4, 2026
Save £23,893 GBP (42%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £57,136 GBP at MOH London · As of November 4, 2026
View at MOH London

About this 3.12ct natural round diamond

This 3.12ct natural round sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6552357165. Listed at 16 retailers as of November 4, 2026, with prices from £33,243 to £57,136, a £23,893 spread on the same certified stone. MOH London lists it at £57,136. 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

3.12
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6552357165
Dimensions9.30 × 9.35 × 5.81 mm
L/W Ratio1.01
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
9.30 mm9.35 mm3.12 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552357165
Side View
Table 56.0%CrownGirdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.3%

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 4
Current: £57,136 GBP|Low: £30,061 GBP|High: £57,903 GBP|Avg: £39,582 GBP|+0.2%
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
Retailer 17
November 6, 2026
Retailer 3£30,061 GBP
Retailer 5£33,150 GBP
Retailer 14£33,243 GBP
Retailer 6£33,363 GBP
Retailer 13£33,506 GBP
Retailer 16£33,605 GBP
Retailer 9£33,839 GBP
Retailer 15£35,533 GBP
Retailer 10£36,343 GBP
Retailer 7£37,259 GBP
Retailer 17£39,137 GBP
Retailer 8£41,127 GBP
Retailer 4£42,367 GBP
Retailer 12£42,772 GBP
Retailer 2£47,224 GBP
Retailer 11£49,468 GBP
MOH London£57,136 GBP

29 data points across 17 retailers

16 retailers£33,243 GBP to £57,136 GBP

Retailer 1
-
£30,061 GBP
Price last confirmed 29 days ago
Retailer 2
-
£33,150 GBP
View
Price last confirmed 30 days ago
B+
Retailer 3
-
£33,243 GBP
View
Retailer 4
-
£33,363 GBP
View
Price last confirmed 31 days ago
B+
Retailer 5
-
£33,506 GBP
View
B+
Retailer 6
-
£33,605 GBP
View
B+
Retailer 7
-
£35,533 GBP
View
B+
Retailer 8
-
£36,343 GBP
View
Retailer 9
-
£37,259 GBP
View
Price last confirmed 34 days ago
B+
Retailer 10
-
£39,137 GBP
View
Retailer 11
-
£41,127 GBP
View
Price last confirmed 38 days ago
Retailer 12
-
£42,367 GBP
View
Price last confirmed 30 days ago
B+
Retailer 13
-
£42,772 GBP
View
B+
Retailer 14
-
£47,224 GBP
View
B
Retailer 15
-
£49,468 GBP
View
Most Expensive
B
MOH London
B33A160BC · Nov 4
£57,136 GBP
View
15 more retailers have this diamond
Prices start from £33,243 GBPSave up to £23,893 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+
3.12ct Round
£33,243 GBP