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1.27ct D SI2 Round Natural Diamond

VG • D/SI2 • 6545586629

Diamond specifications and retailer prices

From £2,426 GBP
$3,250 USD
As of October 29, 2026
Save £2,219 GBP (48%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £4,644 GBP at Allurez · As of October 26, 2026
View at Allurez

About this 1.27ct natural round diamond

This 1.27ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade. Listed at 2 retailers as of October 26, 2026, with prices from £2,426 to £4,644, a £2,219 spread on the same certified stone. Allurez lists it at £4,644. 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

1.27
Carat
D
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading Lab
Certificate6545586629
Dimensions6.89 × 6.85 × 4.31 mm
L/W Ratio1.01
Top View
6.89 mm6.85 mm1.27 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Certificate6545586629
Side View
Table 56.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.7%

Caratlytics Score

How it works →
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 29
Current: £4,644 GBP|Low: £2,023 GBP|High: £4,644 GBP|Avg: £3,285 GBP
Allurez
Retailer 2
Retailer 3
May 11, 2026
Retailer 3£2,023 GBP
Retailer 2£2,426 GBP
Allurez£4,644 GBP

28 data points across 3 retailers

2 retailers£2,426 GBP to £4,644 GBP

B+
Cheapest Retailer
-
£2,426 GBP
$3,250 USD
Most Expensive
C
Allurez
4678091 · Oct 26
£4,644 GBP
$6,223 USD
View
1 more retailer has this diamond
Prices start from £2,426 GBPSave up to £2,219 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+
1.27ct Round
£2,426 GBP