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Round|Natural|GIA

1.02ct K SI1 Round Natural Diamond

GD • K/SI1 • GIA 6171253664

Certificate GIA 6171253664

Diamond specifications and retailer prices

From £1,505 GBP
As of November 6, 2026
Save £2,340 GBP (61%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £3,845 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.02ct natural round diamond

This 1.02ct natural round sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade and certified by GIA 6171253664. Listed at 13 retailers as of November 5, 2026, with prices from £1,505 to £3,845, a £2,340 spread on the same certified stone. NZ Jewellers lists it at £3,845. 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

1.02
Carat
K
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6171253664
Dimensions6.19 × 6.16 × 4.08 mm
L/W Ratio1.00
Star length55%
Lower girdle80%
Top View
6.19 mm6.16 mm1.02 ctK / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6171253664
Side View
Table 58.0%Crown 38°Girdle: THK-VTKPavilion 41°Culet: NoneDepth 66.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £3,845 GBP|Low: £1,545 GBP|High: £3,845 GBP|Avg: £2,222 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 6£1,545 GBP
Retailer 8£1,621 GBP
Retailer 10£1,667 GBP
Retailer 9£1,672 GBP
Retailer 7£1,743 GBP
Retailer 2£1,934 GBP
Retailer 4£2,245 GBP
Retailer 3£2,279 GBP
Retailer 5£3,213 GBP
NZ Jewellers£3,845 GBP

43 data points across 10 retailers

13 retailers£1,505 GBP to £3,845 GBP

B+
Cheapest Retailer
-
£1,505 GBP
B+
Retailer 2
-
£1,545 GBP
View
B
Retailer 3
-
£1,621 GBP
View
Retailer 4
-
£1,667 GBP
View
Price last confirmed 8 days ago
B
Retailer 5
-
£1,667 GBP
View
B
Retailer 6
-
£1,672 GBP
View
B
Retailer 7
-
£1,743 GBP
View
B
Retailer 8
-
£1,923 GBP
View
B
Retailer 9
-
£1,934 GBP
View
B
Retailer 10
-
£2,245 GBP
View
B
Retailer 11
-
£2,279 GBP
View
C
Retailer 12
-
£3,213 GBP
View
Most Expensive
C
NZ Jewellers
375ecab0-c24e-476a-82bb-3e4034fff996 · Nov 5
£3,845 GBP
$5,175 USD
View
12 more retailers have this diamond
Prices start from £1,505 GBPSave up to £2,340 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+
1.02ct Round
£1,505 GBP