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Round|Natural|GIA

2.06ct D SI1 Round Natural Diamond

ID • D/SI1 • GIA 7

Certificate GIA 7

Diamond specifications and retailer prices

From £19,736 GBP
$26,444 USD
As of October 29, 2026
Save £3,401 GBP (15%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £23,137 GBP at Blue Nile · As of October 29, 2026
View at Blue Nile

About this 2.06ct natural round diamond

This 2.06ct natural round sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA. Listed at 3 retailers as of October 29, 2026, with prices from £19,736 to £23,137, a £3,401 spread on the same certified stone. Blue Nile lists it at £23,137. 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

2.06
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7
Dimensions8.13 × 8.15 × 5.02 mm
L/W Ratio1.00
Top View
8.13 mm8.15 mm2.06 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 61.7%

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: £23,137 GBP|Low: £19,541 GBP|High: £23,137 GBP|Avg: £21,319 GBP
Blue Nile
Retailer 2
Retailer 3
September 23, 2026
Retailer 2£19,736 GBP
Retailer 3£21,227 GBP
Blue Nile£23,137 GBP

3 data points across 3 retailers

3 retailers£19,736 GBP to £23,137 GBP

B+
Cheapest Retailer
-
£19,736 GBP
$26,444 USD
B
Retailer 2
-
£21,227 GBP
$28,442 USD
View
Most Expensive
B
Blue Nile
5626966 · Oct 29
£23,137 GBP
$31,001 USD
View
2 more retailers have this diamond
Prices start from £19,736 GBPSave up to £3,401 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+
2.06ct Round
£19,736 GBP