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Round|Natural|GIA

1.01ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 2186651936

Certificate GIA 2186651936

Diamond specifications and retailer prices

From £2,593 GBP
As of November 4, 2026
Save £4,138 GBP (61%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £6,731 GBP at Diamond Quarter · As of November 5, 2026
View at Diamond Quarter

About this 1.01ct natural round diamond

This 1.01ct natural round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2186651936. Listed at 24 retailers as of November 4, 2026, with prices from £2,593 to £6,731, a £4,138 spread on the same certified stone. Diamond Quarter lists it at £6,731. 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

1.01
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2186651936
Dimensions6.44 × 6.40 × 3.95 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.44 mm6.40 mm1.01 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2186651936
Side View
Table 61.0%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: Nov 4
Current: £4,211 GBP|Low: £2,497 GBP|High: £5,562 GBP|Avg: £3,573 GBP|+1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 5£2,660 GBP
Retailer 6£2,885 GBP
Retailer 9£3,127 GBP
Retailer 8£3,361 GBP
Retailer 3£3,375 GBP
Retailer 7£3,479 GBP
Retailer 2£3,653 GBP
Retailer 1£4,211 GBP
Retailer 4£5,481 GBP

41 data points across 9 retailers

24 retailers£2,593 GBP to £6,731 GBP

B+
Cheapest Retailer
-
£2,593 GBP
B+
Retailer 2
-
£2,651 GBP
View
B+
Retailer 3
-
£2,660 GBP
View
B+
Retailer 4
-
£2,751 GBP
View
B+
Retailer 5
-
£2,885 GBP
View
Final sale: no returns
B+
Retailer 6
-
£2,972 GBP
View
B+
Retailer 7
-
£3,113 GBP
View
B+
Retailer 8
-
£3,127 GBP
View
B+
Retailer 9
-
£3,127 GBP
View
B+
Retailer 10
-
£3,309 GBP
View
B+
Retailer 11
-
£3,317 GBP
View
B+
Retailer 12
-
£3,375 GBP
View
Retailer 13
-
£3,479 GBP
View
Price last confirmed 28 days ago
B
Retailer 14
-
£3,522 GBP
View
B
Retailer 15
-
£3,522 GBP
View
B
Retailer 16
-
£3,607 GBP
View
B
Retailer 17
-
£3,641 GBP
View
B+
Retailer 18
-
£3,653 GBP
View
Retailer 19
-
£3,812 GBP
View
Price last confirmed 14 days ago
B
Retailer 20
-
£4,211 GBP
View
B
Retailer 21
-
£4,992 GBP
View
B
Retailer 22
-
£5,481 GBP
View
B
Retailer 23
-
£6,012 GBP
View
Most Expensive
B
Diamond Quarter
1.01SI1D21365E21N · Nov 5
£6,731 GBP
View
23 more retailers have this diamond
Prices start from £2,593 GBPSave up to £4,138 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+
1.01ct Round
£2,593 GBP