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Marquise|Natural|GIA

2.51ct I SI2 Marquise Natural Diamond

VG • I/SI2 • GIA 2544662197

Certificate GIA 2544662197

Diamond specifications and retailer prices

From £17,249 GBP
CA$32,101 CAD
As of October 30, 2026
Save £2,834 GBP (14%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £20,084 GBP at 77 Diamonds · As of October 30, 2026
View at 77 Diamonds

About this 2.51ct natural marquise diamond

This 2.51ct natural marquise sits in the two to three carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2544662197. Listed at 4 retailers as of October 30, 2026, with prices from £17,249 to £20,084, a £2,834 spread on the same certified stone. 77 Diamonds lists it at £20,084. 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
I
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.19°
Pavilion angle41.96°
OriginNatural
Grading LabGIA
CertificateGIA 2544662197
Dimensions13.09 × 7.02 × 4.58 mm
L/W Ratio1.86
Top View
13.09 mm7.02 mm2.51 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2544662197
Side View
Table 60.0%Crown 40.19°Girdle: MED-VTKPavilion 41.96°Culet: NoneDepth 65.2%

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: Oct 30
Current: £20,084 GBP|Low: £16,952 GBP|High: £20,288 GBP|Avg: £18,607 GBP|+1.4%
77 Diamonds
Retailer 2
October 30, 2026
Retailer 2£16,990 GBP
77 Diamonds£20,084 GBP

43 data points across 2 retailers

4 retailers£17,249 GBP to £20,084 GBP

Retailer 1
-
£16,990 GBP
₹2,168,132 INR
Price last confirmed 8 days ago
B+
Retailer 2
-
£17,249 GBP
CA$32,101 CAD
View
B+
Retailer 3
-
£17,384 GBP
A$35,835 AUD
View
Most Expensive
B
77 Diamonds
MQMBRDS2DUSG · Oct 30
£20,084 GBP
View
3 more retailers have this diamond
Prices start from £17,249 GBPSave up to £2,834 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 Marquise
£17,249 GBP