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Oval|Natural|GIA

1.21ct H SI2 Oval Natural Diamond

VG • H/SI2 • GIA 1533156533

Certificate GIA 1533156533

Diamond specifications and retailer prices

From £2,535 GBP
$3,397 USD
As of October 30, 2026
Save £2,957 GBP (54%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £5,492 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 1533156533. Listed at 17 retailers as of October 30, 2026, with prices from £2,535 to £5,492, a £2,957 spread on the same certified stone. NZ Jewellers lists it at £5,492. 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
Pavilion angle40.9°
OriginNatural
Grading LabGIA
CertificateGIA 1533156533
Dimensions8.54 × 5.99 × 3.73 mm
L/W Ratio1.43
Girdle conditionFaceted
Top View
8.54 mm5.99 mm1.21 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1533156533
Side View
Table 60.0%CrownGirdle: STK-THKPavilion 40.9°Culet: NoneDepth 62.3%

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: £5,492 GBP|Low: £2,416 GBP|High: £5,492 GBP|Avg: £3,512 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
October 31, 2026
Retailer 10£2,636 GBP
Retailer 5£2,682 GBP
Retailer 3£2,856 GBP
Retailer 12£2,856 GBP
Retailer 11£2,966 GBP
Retailer 6£3,225 GBP
Retailer 13£3,295 GBP
Retailer 7£3,567 GBP
Retailer 2£3,568 GBP
Retailer 4£3,751 GBP
Retailer 9£4,558 GBP
Retailer 8£5,300 GBP
NZ Jewellers£5,492 GBP

41 data points across 13 retailers

17 retailers£2,535 GBP to £5,492 GBP

B+
Cheapest Retailer
-
£2,535 GBP
$3,397 USD
B
Retailer 2
-
£2,636 GBP
$3,532 USD
View
Final sale: no returns
B
Retailer 3
-
£2,682 GBP
$3,594 USD
View
B
Retailer 4
-
£2,856 GBP
$3,827 USD
View
B
Retailer 5
-
£2,856 GBP
$3,827 USD
View
B
Retailer 6
-
£2,966 GBP
$3,974 USD
View
B
Retailer 7
-
£3,108 GBP
$4,164 USD
View
B
Retailer 8
-
£3,211 GBP
$4,302 USD
View
B
Retailer 9
-
£3,224 GBP
$4,320 USD
View
B
Retailer 10
-
£3,224 GBP
$4,320 USD
View
B
Retailer 11
-
£3,225 GBP
View
B
Retailer 12
-
£3,295 GBP
$4,415 USD
View
B
Retailer 13
-
£3,336 GBP
$4,470 USD
View
B
Retailer 14
-
£3,568 GBP
€4,553 EUR
View
B
Retailer 15
-
£4,558 GBP
$6,107 USD
View
B
Retailer 16
-
£5,300 GBP
View
Most Expensive
B
NZ Jewellers
bf9080da-115e-41bd-83ec-29156a03524f · Oct 30
£5,492 GBP
$7,359 USD
View
16 more retailers have this diamond
Prices start from £2,535 GBPSave up to £2,957 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
£2,535 GBP