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Round|Natural|GIA

1.01ct K SI2 Round Natural Diamond

VG • K/SI2 • GIA 1236390802

Certificate GIA 1236390802

Diamond specifications and retailer prices

From £1,180 GBP
As of November 4, 2026
Save £2,372 GBP (67%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,552 GBP at NZ Jewellers · As of November 5, 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 very-good cut grade and certified by GIA 1236390802. Listed at 15 retailers as of November 4, 2026, with prices from £1,180 to £3,552, a £2,372 spread on the same certified stone. NZ Jewellers lists it at £3,552. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.01
Carat
K
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 1236390802
Dimensions6.32 × 6.25 × 4.04 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Girdle conditionFaceted
Culet sizeNone
Cert comments
Inscription(s): GIA 1236390802, HRD Antwerp 220000014950
Top View
6.32 mm6.25 mm1.01 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1236390802
Side View
Table 58.0%Crown 36°Girdle: STK-THKPavilion 41.2°Culet: NoneDepth 64.2%

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: Nov 4
Current: £3,552 GBP|Low: £1,180 GBP|High: £3,552 GBP|Avg: £1,758 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 11£1,180 GBP
Retailer 8£1,202 GBP
Retailer 9£1,233 GBP
Retailer 4£1,320 GBP
Retailer 12£1,320 GBP
Retailer 10£1,380 GBP
Retailer 3£1,522 GBP
Retailer 2£1,563 GBP
Retailer 5£1,713 GBP
Retailer 6£1,845 GBP
Retailer 7£2,545 GBP
NZ Jewellers£3,552 GBP

41 data points across 12 retailers

15 retailers£1,180 GBP to £3,552 GBP

B+
Cheapest Retailer
-
£1,180 GBP
B+
Retailer 2
-
£1,187 GBP
View
B+
Retailer 3
-
£1,202 GBP
View
B+
Retailer 4
-
£1,233 GBP
View
B+
Retailer 5
-
£1,239 GBP
View
B+
Retailer 6
-
£1,284 GBP
View
B+
Retailer 7
-
£1,320 GBP
View
Retailer 8
-
£1,320 GBP
View
Price last confirmed 8 days ago
B+
Retailer 9
-
£1,380 GBP
View
B+
Retailer 10
-
£1,522 GBP
View
B+
Retailer 11
-
£1,563 GBP
View
B
Retailer 12
-
£1,713 GBP
View
B
Retailer 13
-
£1,845 GBP
View
B
Retailer 14
-
£2,545 GBP
View
Most Expensive
C
NZ Jewellers
5aa44d12-82cf-4380-96fc-42675d74002c · Nov 5
£3,552 GBP
$4,781 USD
View
14 more retailers have this diamond
Prices start from £1,180 GBPSave up to £2,372 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
£1,180 GBP