CaratHunter
Plans
Round|Natural|GIA

0.90ct L SI1 Round Natural Diamond

VG • L/SI1 • GIA 1278579531

Certificate GIA 1278579531

Diamond specifications and retailer prices

From £542 GBP
As of November 6, 2026
Save £1,727 GBP (76%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £2,268 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.9ct natural round diamond

This 0.9ct natural round sits in the just-under-one-carat band, graded L colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 1278579531. Listed at 15 retailers as of November 5, 2026, with prices from £542 to £2,268, a £1,727 spread on the same certified stone. NZ Jewellers lists it at £2,268. 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

0.90
Carat
L
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1278579531
Dimensions6.03 × 6.01 × 3.92 mm
L/W Ratio1.00
Key to symbols
Feather, Crystal, Cloud
Top View
6.03 mm6.01 mm0.90 ctL / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1278579531
Side View
Table 54.0%CrownGirdle: ThickPavilionCulet: NoneDepth 65.0%

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: £2,268 GBP|Low: £532 GBP|High: £2,268 GBP|Avg: £926 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
November 6, 2026
Retailer 12£542 GBP
Retailer 7£658 GBP
Retailer 8£661 GBP
Retailer 3£707 GBP
Retailer 13£724 GBP
Retailer 15£724 GBP
Retailer 14£751 GBP
Retailer 4£791 GBP
Retailer 6£822 GBP
Retailer 9£834 GBP
Retailer 16£834 GBP
Retailer 5£836 GBP
Retailer 10£1,010 GBP
Retailer 11£1,059 GBP
Retailer 2£1,719 GBP
NZ Jewellers£2,268 GBP

35 data points across 16 retailers

15 retailers£542 GBP to £2,268 GBP

B+
Cheapest Retailer
-
£542 GBP
B+
Retailer 2
-
£661 GBP
View
B+
Retailer 3
-
£707 GBP
View
B+
Retailer 4
-
£724 GBP
View
Retailer 5
-
£724 GBP
View
Price last confirmed 8 days ago
B+
Retailer 6
-
£751 GBP
View
B
Retailer 7
-
£791 GBP
View
B
Retailer 8
-
£822 GBP
View
B
Retailer 9
-
£834 GBP
View
B
Retailer 10
-
£834 GBP
View
B
Retailer 11
-
£836 GBP
View
B
Retailer 12
-
£1,010 GBP
View
B
Retailer 13
-
£1,059 GBP
View
C
Retailer 14
-
£1,719 GBP
View
Most Expensive
C
NZ Jewellers
7b38b294-c18a-412d-9b83-36cee8dfd355 · Nov 5
£2,268 GBP
$3,053 USD
View
14 more retailers have this diamond
Prices start from £542 GBPSave up to £1,727 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+
0.90ct Round
£542 GBP