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Round|Natural|GIA

2.51ct H SI1 Round Natural Diamond

VG • H/SI1 • GIA 5242063572

Certificate GIA 5242063572

Diamond specifications and retailer prices

From £14,291 GBP
SGD 25,877 SGD
As of November 1, 2026
Save £12,391 GBP (46%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £26,683 GBP at With Clarity · As of November 1, 2026
View at With Clarity

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 5242063572. Listed at 15 retailers as of November 1, 2026, with prices from £14,291 to £26,683, a £12,391 spread on the same certified stone. With Clarity lists it at £26,683. 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

2.51
Carat
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 5242063572
Dimensions8.41 × 8.46 × 5.45 mm
L/W Ratio1.01
Culet sizeNone
Top View
8.41 mm8.46 mm2.51 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5242063572
Side View
Table 57.0%Crown 38.5°Girdle: MED-THKPavilion 40.2°Culet: NoneDepth 64.6%

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 1
Current: £21,946 GBP|Low: £14,291 GBP|High: £26,683 GBP|Avg: £18,049 GBP
Retailer 1
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
With Clarity
November 1, 2026
Retailer 5£14,291 GBP
Retailer 14£15,355 GBP
Retailer 8£15,380 GBP
Retailer 4£15,598 GBP
Retailer 9£15,654 GBP
Retailer 6£15,942 GBP
Retailer 10£16,117 GBP
Retailer 11£16,309 GBP
Retailer 13£17,996 GBP
Retailer 7£18,261 GBP
Retailer 3£18,367 GBP
Retailer 12£19,236 GBP
Retailer 1£21,946 GBP
Retailer 2£23,032 GBP
With Clarity£26,683 GBP

37 data points across 15 retailers

15 retailers£14,291 GBP to £26,683 GBP

B+
Cheapest Retailer
-
£14,291 GBP
SGD 25,877 SGD
B+
Retailer 2
-
£15,355 GBP
$20,574 USD
View
B+
Retailer 3
-
£15,380 GBP
View
B+
Retailer 4
-
£15,598 GBP
$20,900 USD
View
B+
Retailer 5
-
£15,654 GBP
$20,975 USD
View
B+
Retailer 6
-
£15,942 GBP
$21,361 USD
View
B+
Retailer 7
-
£16,117 GBP
SGD 29,182 SGD
View
B+
Retailer 8
-
£16,309 GBP
$21,852 USD
View
B
Retailer 9
-
£17,996 GBP
$24,112 USD
View
B
Retailer 10
-
£18,261 GBP
€23,303 EUR
View
B
Retailer 11
-
£18,367 GBP
$24,609 USD
View
B
Retailer 12
-
£19,236 GBP
$25,774 USD
View
B
Retailer 13
-
£21,946 GBP
$29,405 USD
View
B
Retailer 14
-
£23,032 GBP
$30,861 USD
View
Most Expensive
B
With Clarity
5242063572 · Nov 1
£26,683 GBP
$35,752 USD
View
14 more retailers have this diamond
Prices start from £14,291 GBPSave up to £12,391 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+
2.51ct Round
£14,291 GBP