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Oval|Natural|GIA

1.21ct H SI2 Oval Natural Diamond

VG • H/SI2 • GIA 6512107560

Certificate GIA 6512107560

Diamond specifications and retailer prices

From £2,152 GBP
$2,884 USD
As of October 30, 2026
Save £2,529 GBP (54%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £4,681 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.21ct natural oval diamond

This 1.21ct natural oval sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6512107560. Listed at 17 retailers as of October 30, 2026, with prices from £2,152 to £4,681, a £2,529 spread on the same certified stone. NZ Jewellers lists it at £4,681. 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

1.21
Carat
H
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.89°
Pavilion angle39.45°
OriginNatural
Grading LabGIA
CertificateGIA 6512107560
Dimensions8.03 × 5.90 × 3.75 mm
L/W Ratio1.36
Top View
8.03 mm5.90 mm1.21 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6512107560
Side View
Table 61.0%Crown 41.89°Girdle: THN-VTKPavilion 39.45°Culet: NoneDepth 63.5%

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: Oct 30
Current: £4,681 GBP|Low: £1,941 GBP|High: £4,681 GBP|Avg: £2,749 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
October 31, 2026
Retailer 11£2,116 GBP
Retailer 6£2,152 GBP
Retailer 13£2,161 GBP
Retailer 14£2,246 GBP
Retailer 12£2,286 GBP
Retailer 3£2,435 GBP
Retailer 8£2,435 GBP
Retailer 15£2,528 GBP
Retailer 5£2,591 GBP
Retailer 4£2,717 GBP
Retailer 16£2,717 GBP
Retailer 2£2,808 GBP
Retailer 7£2,808 GBP
Retailer 9£3,146 GBP
Retailer 10£4,517 GBP
NZ Jewellers£4,681 GBP

43 data points across 16 retailers

17 retailers£2,152 GBP to £4,681 GBP

Retailer 1
-
£2,116 GBP
$2,835 USD
Price last confirmed 10 days ago
B+
Retailer 2
-
£2,152 GBP
$2,884 USD
View
B+
Retailer 3
-
£2,161 GBP
$2,896 USD
View
B+
Retailer 4
-
£2,246 GBP
$3,010 USD
View
Final sale: no returns
B+
Retailer 5
-
£2,286 GBP
$3,063 USD
View
B+
Retailer 6
-
£2,435 GBP
$3,262 USD
View
B+
Retailer 7
-
£2,435 GBP
$3,262 USD
View
B+
Retailer 8
-
£2,446 GBP
$3,278 USD
View
B
Retailer 9
-
£2,528 GBP
$3,387 USD
View
B
Retailer 10
-
£2,717 GBP
$3,640 USD
View
B
Retailer 11
-
£2,717 GBP
$3,640 USD
View
B+
Retailer 12
-
£2,808 GBP
View
B
Retailer 13
-
£2,808 GBP
$3,763 USD
View
B
Retailer 14
-
£2,814 GBP
$3,770 USD
View
B
Retailer 15
-
£3,146 GBP
€4,014 EUR
View
B
Retailer 16
-
£4,517 GBP
View
Most Expensive
C
NZ Jewellers
f614ecc1-1868-4ce0-8aed-861cb89db63f · Oct 30
£4,681 GBP
$6,272 USD
View
16 more retailers have this diamond
Prices start from £2,152 GBPSave up to £2,529 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+
1.21ct Oval
£2,152 GBP