CaratHunter
Plans
Oval|Natural|GIA

1.33ct M SI1 Oval Natural Diamond

ID • M/SI1 • GIA 6551627328

Certificate GIA 6551627328

Diamond specifications and retailer prices

From £822 GBP
As of November 6, 2026
Save £1,869 GBP (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £2,690 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.33ct natural oval diamond

This 1.33ct natural oval sits in the one-and-a-quarter to one-and-a-half carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551627328. Listed at 15 retailers as of November 5, 2026, with prices from £822 to £2,690, a £1,869 spread on the same certified stone. NZ Jewellers lists it at £2,690. 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

1.33
Carat
M
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6551627328
Dimensions9.33 × 6.09 × 3.65 mm
L/W Ratio1.53
Top View
9.33 mm6.09 mm1.33 ctM / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6551627328
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCuletDepth 59.9%

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: £2,690 GBP|Low: £822 GBP|High: £3,020 GBP|Avg: £1,381 GBP|-10.9%
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
November 6, 2026
Retailer 14£822 GBP
Retailer 3£960 GBP
Retailer 12£1,023 GBP
Retailer 2£1,084 GBP
Retailer 10£1,103 GBP
Retailer 5£1,130 GBP
Retailer 6£1,138 GBP
Retailer 13£1,154 GBP
Retailer 11£1,173 GBP
Retailer 7£1,204 GBP
Retailer 4£1,272 GBP
Retailer 9£1,346 GBP
Retailer 8£1,527 GBP
NZ Jewellers£2,690 GBP

37 data points across 14 retailers

15 retailers£822 GBP to £2,690 GBP

A
Cheapest Retailer
-
£822 GBP
A
Retailer 2
-
£960 GBP
View
A
Retailer 3
-
£1,023 GBP
View
A
Retailer 4
-
£1,084 GBP
View
A
Retailer 5
-
£1,103 GBP
View
Retailer 6
-
£1,130 GBP
View
Price last confirmed 8 days ago
A
Retailer 7
-
£1,138 GBP
View
A
Retailer 8
-
£1,154 GBP
View
A
Retailer 9
-
£1,173 GBP
View
A
Retailer 10
-
£1,204 GBP
View
A
Retailer 11
-
£1,272 GBP
View
A
Retailer 12
-
£1,346 GBP
View
Retailer 13
-
£1,366 GBP
View
Price last confirmed 23 days ago
B+
Retailer 14
-
£1,527 GBP
View
Most Expensive
B
NZ Jewellers
d64cecf7-a2ce-4d5a-ae33-a29c8378ba0a · Nov 5
£2,690 GBP
$3,601 USD
View
14 more retailers have this diamond
Prices start from £822 GBPSave up to £1,869 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
1.33ct Oval
£822 GBP