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Round|Natural|GIA

1.20ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6214999900

Certificate GIA 6214999900

Diamond specifications and retailer prices

From £2,499 GBP
As of November 6, 2026
Save £3,173 GBP (56%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £5,672 GBP at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6214999900. Listed at 22 retailers as of November 2, 2026, with prices from £2,499 to £5,672, a £3,173 spread on the same certified stone. NZ Jewellers lists it at £5,672. 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

1.20
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6214999900
Dimensions6.77 × 6.73 × 4.21 mm
L/W Ratio1.01
Top View
6.77 mm6.73 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6214999900
Side View
Table 59.0%Crown 35°Girdle: STK-STKPavilion 41.6°Culet: NoneDepth 62.6%

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 6
Current: £5,672 GBP|Low: £1,843 GBP|High: £5,672 GBP|Avg: £3,381 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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 4, 2026
Retailer 6£2,499 GBP
Retailer 17£2,544 GBP
Retailer 20£2,544 GBP
Retailer 5£2,595 GBP
Retailer 7£2,722 GBP
Retailer 3£2,817 GBP
Retailer 21£2,943 GBP
Retailer 10£2,950 GBP
Retailer 11£2,950 GBP
Retailer 19£2,950 GBP
Retailer 2£3,277 GBP
Retailer 8£3,287 GBP
Retailer 18£3,287 GBP
Retailer 9£3,399 GBP
Retailer 12£3,403 GBP
Retailer 14£3,409 GBP
Retailer 13£3,459 GBP
Retailer 4£3,683 GBP
Retailer 16£4,002 GBP
Retailer 15£5,185 GBP
NZ Jewellers£5,672 GBP

41 data points across 21 retailers

22 retailers£2,499 GBP to £5,672 GBP

B+
Cheapest Retailer
-
£2,499 GBP
B+
Retailer 2
-
£2,544 GBP
View
B+
Retailer 3
-
£2,544 GBP
View
B+
Retailer 4
-
£2,595 GBP
View
B+
Retailer 5
-
£2,700 GBP
View
B+
Retailer 6
-
£2,722 GBP
View
Final sale: no returns
B
Retailer 7
-
£2,817 GBP
View
B+
Retailer 8
-
£2,943 GBP
View
Retailer 9
-
£2,950 GBP
View
Price last confirmed 8 days ago
B+
Retailer 10
-
£2,950 GBP
View
B+
Retailer 11
-
£2,950 GBP
View
B+
Retailer 12
-
£3,277 GBP
View
B
Retailer 13
-
£3,287 GBP
View
B
Retailer 14
-
£3,287 GBP
View
B
Retailer 15
-
£3,399 GBP
View
B
Retailer 16
-
£3,403 GBP
View
Retailer 17
-
£3,409 GBP
View
Price last confirmed 28 days ago
B
Retailer 18
-
£3,459 GBP
View
Retailer 19
-
£3,683 GBP
View
Price last confirmed 14 days ago
B
Retailer 20
-
£4,002 GBP
View
B
Retailer 21
-
£5,185 GBP
View
Most Expensive
B
NZ Jewellers
440ebb56-612b-4092-b945-f332abe39867 · Nov 2
£5,672 GBP
$7,592 USD
View
21 more retailers have this diamond
Prices start from £2,499 GBPSave up to £3,173 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+
1.20ct Round
£2,499 GBP