CaratHunter
Plans
Oval|Natural|GIA

1.21ct G SI1 Oval Natural Diamond

ID • G/SI1 • GIA 5536231357

Certificate GIA 5536231357

Diamond specifications and retailer prices

From £2,152 GBP
As of November 6, 2026
Save £2,719 GBP (56%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £4,896 GBP at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.21ct natural oval diamond

This 1.21ct natural oval sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5536231357. Listed at 25 retailers as of November 6, 2026, with a 126% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.21
Carat
G
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5536231357
Dimensions8.37 × 5.99 × 3.74 mm
L/W Ratio1.40
Top View
8.37 mm5.99 mm1.21 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 5536231357
Side View
Table 63.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 62.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £4,896 GBP|Low: £2,152 GBP|High: £4,896 GBP|Avg: £3,275 GBP|+0.4%
Queensmith
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
November 7, 2026
Retailer 10£2,152 GBP
Retailer 17£2,232 GBP
Retailer 3£2,557 GBP
Retailer 12£2,581 GBP
Retailer 18£2,714 GBP
Retailer 14£2,730 GBP
Retailer 2£2,796 GBP
Retailer 5£2,796 GBP
Retailer 16£2,894 GBP
Retailer 7£2,903 GBP
Retailer 11£2,905 GBP
Retailer 8£2,951 GBP
Retailer 4£3,024 GBP
Retailer 9£3,226 GBP
Retailer 19£3,255 GBP
Retailer 20£3,413 GBP
Retailer 13£3,566 GBP
Retailer 15£4,651 GBP
Retailer 6£4,871 GBP
Queensmith£4,896 GBP

22 data points across 20 retailers

25 retailers£2,152 GBP to £4,871 GBP

A
Cheapest Retailer
-
£2,152 GBP
A
Retailer 2
-
£2,232 GBP
View
B+
Retailer 3
-
£2,536 GBP
View
B+
Retailer 4
-
£2,557 GBP
View
B+
Retailer 5
-
£2,581 GBP
View
Final sale: no returns
B+
Retailer 6
-
£2,655 GBP
View
B+
Retailer 7
-
£2,656 GBP
View
B+
Retailer 8
-
£2,714 GBP
View
B+
Retailer 9
-
£2,730 GBP
View
B+
Retailer 10
-
£2,796 GBP
View
B+
Retailer 11
-
£2,796 GBP
View
B+
Retailer 12
-
£2,883 GBP
View
B+
Retailer 13
-
£2,894 GBP
View
B+
Retailer 14
-
£2,903 GBP
View
B+
Retailer 15
-
£2,905 GBP
View
B+
Retailer 16
-
£2,951 GBP
View
B+
Retailer 17
-
£3,024 GBP
View
Retailer 18
-
£3,034 GBP
View
Price last confirmed 30 days ago
B+
Retailer 19
-
£3,226 GBP
View
B+
Retailer 20
-
£3,255 GBP
View
B+
Retailer 21
-
£3,413 GBP
View
B
Retailer 22
-
£3,566 GBP
View
B
Retailer 23
-
£4,651 GBP
View
B
Retailer 24
-
£4,871 GBP
View
Most Expensive
Queensmith
5536231357 · Oct 28
£4,896 GBP
View
Price last confirmed 10 days ago
24 more retailers have this diamond
Prices start from £2,152 GBPSave up to £2,719 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.

A
1.21ct Oval
£2,152 GBP