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Round|Natural|GIA

1.01ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 1543087106

Certificate GIA 1543087106

Diamond specifications and retailer prices

From £989 GBP
As of November 4, 2026
Save £1,285 GBP (57%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £3,176 GBP at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.01ct natural round diamond

This 1.01ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1543087106. Listed at 18 retailers as of November 4, 2026, with a 130% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1543087106
Dimensions6.39 × 6.31 × 4.04 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Cavity, Indented Natural
Top View
6.39 mm6.31 mm1.01 ctK / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1543087106
Side View
Table 56.0%Crown 36°Girdle: THN-STKPavilion 41.2°Culet: NoneDepth 63.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: £1,263 GBP|Low: £989 GBP|High: £2,308 GBP|Avg: £1,432 GBP|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 7£989 GBP
Retailer 4£1,031 GBP
Retailer 5£1,064 GBP
Retailer 1£1,263 GBP
Retailer 8£1,272 GBP
Retailer 2£1,437 GBP
Retailer 3£1,765 GBP
Retailer 6£2,274 GBP

29 data points across 8 retailers

18 retailers£989 GBP to £2,274 GBP

A
Cheapest Retailer
-
£989 GBP
A
Retailer 2
-
£1,031 GBP
View
A
Retailer 3
-
£1,064 GBP
View
B+
Retailer 4
-
£1,239 GBP
View
A
Retailer 5
-
£1,263 GBP
View
B+
Retailer 6
-
£1,272 GBP
View
Retailer 7
-
£1,302 GBP
View
Price last confirmed 39 days ago
Retailer 8
-
£1,302 GBP
View
Price last confirmed 36 days ago
B+
Retailer 9
-
£1,315 GBP
View
Retailer 10
-
£1,362 GBP
View
Price last confirmed 38 days ago
B+
Retailer 11
-
£1,370 GBP
View
B+
Retailer 12
-
£1,404 GBP
View
B+
Retailer 13
-
£1,437 GBP
View
Retailer 14
-
£1,502 GBP
View
Price last confirmed 39 days ago
Retailer 15
-
£1,502 GBP
View
Price last confirmed 38 days ago
B
Retailer 16
-
£1,765 GBP
View
B
Retailer 17
-
£2,274 GBP
View
Most Expensive
NZ Jewellers
185984d3-c8d2-4a84-80cc-73d59a7d041c · Sep 28
£3,176 GBP
$4,274 USD
View
Price last confirmed 39 days ago
17 more retailers have this diamond
Prices start from £989 GBPSave up to £1,285 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.

A
1.01ct Round
£989 GBP