Round|Lab Grown|GIA

0.90ct H SI1 Round Lab Grown Diamond

VG • H/SI1 • GIA 260000058260

Certificate GIA 260000058260

Diamond specifications and retailer prices

From £1,140 GBP
€1,455 EUR
As of October 30, 2026
4 retailers carry this diamond
Most expensive: £3,400 GBP at NZ Jewellers · As of August 24, 2026
View at NZ Jewellers

About this 0.9ct lab-grown round diamond

This 0.9ct lab-grown round sits in the just-under-one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 260000058260. Listed at 4 retailers as of October 30, 2026. 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
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.7°
Pavilion angle40.1°
OriginLab Grown
Grading LabGIA
CertificateGIA 260000058260
Dimensions5.95 × 6.02 × 3.86 mm
L/W Ratio1.01
Star length50%
Top View
5.95 mm6.02 mm0.90 ctH / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 260000058260
Side View
Table 56.0%Crown 38.7°Girdle: ThickPavilion 40.1°Culet: NoneDepth 64.3%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £1,140 GBP|Low: £1,108 GBP|High: £3,191 GBP|Avg: £1,828 GBP|+2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 1£1,140 GBP
Retailer 4£1,394 GBP
Retailer 5£1,394 GBP
Retailer 3£1,608 GBP
Retailer 6£2,252 GBP
Retailer 2£3,191 GBP

19 data points across 6 retailers

4 retailers

B+
Cheapest Retailer
-
£1,140 GBP
€1,455 EUR
Retailer 2
-
£1,394 GBP
$1,868 USD
View
Price last confirmed 68 days ago
Retailer 3
-
£1,608 GBP
$2,155 USD
View
Price last confirmed 66 days ago
Most Expensive
NZ Jewellers
df6f3756-7795-43e2-aa9e-f8a9999a53aa · Aug 24
£3,400 GBP
$4,556 USD
View
Price last confirmed 68 days ago
3 more retailers have this diamond
Prices start from £1,140 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
£1,140 GBP