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2.57ct H SI1 Round Lab Grown Diamond

EX • H/SI1 • GCAL 331110439

Shape and cutting style on the report: Round brilliant

Certificate GCAL 331110439

Diamond specifications and retailer prices

From £256 GBP
As of November 5, 2026
Save £2,025 GBP (89%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,281 GBP at Do Amore Diamonds · As of November 5, 2026
View at Do Amore Diamonds

About this 2.57ct lab-grown round diamond

This 2.57ct lab-grown round sits in the two to three carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GCAL 331110439. Listed at 13 retailers as of November 5, 2026, with prices from £256 to £2,281, a £2,025 spread on the same certified stone. Do Amore Diamonds lists it at £2,281. 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

2.57
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginLab Grown
Grading LabGCAL
CertificateGCAL 331110439
Dimensions8.78 × 8.80 × 5.43 mm
L/W Ratio1.00
Culet sizeNone
Top View
8.78 mm8.80 mm2.57 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGCAL 331110439
Side View
Table 57.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.8%

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 5
Current: £2,281 GBP|Low: £230 GBP|High: £2,281 GBP|Avg: £858 GBP|+4.1%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 9£256 GBP
Retailer 13£288 GBP
Retailer 3£318 GBP
Retailer 2£464 GBP
Retailer 4£472 GBP
Retailer 10£496 GBP
Retailer 8£1,051 GBP
Retailer 6£1,078 GBP
Retailer 12£1,129 GBP
Retailer 11£1,241 GBP
Retailer 5£1,243 GBP
Retailer 7£1,372 GBP
Do Amore Diamonds£2,281 GBP

33 data points across 13 retailers

13 retailers£256 GBP to £2,281 GBP

A
Cheapest Retailer
-
£256 GBP
A
Retailer 2
-
£288 GBP
View
Final sale: no returns
A
Retailer 3
-
£318 GBP
View
A
Retailer 4
-
£464 GBP
View
B+
Retailer 5
-
£472 GBP
View
A
Retailer 6
-
£496 GBP
View
A
Retailer 7
-
£1,051 GBP
View
A
Retailer 8
-
£1,078 GBP
View
A
Retailer 9
-
£1,129 GBP
View
B+
Retailer 10
-
£1,241 GBP
View
B+
Retailer 11
-
£1,243 GBP
View
A
Retailer 12
-
£1,372 GBP
View
Most Expensive
B+
Do Amore Diamonds
27-AE12FBD94 · Nov 5
£2,281 GBP
$3,070 USD
View
12 more retailers have this diamond
Prices start from £256 GBPSave up to £2,025 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
2.57ct Round
£256 GBP