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Round|Natural|GIA

1.27ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 1555332615

Certificate GIA 1555332615

Diamond specifications and retailer prices

From £2,075 GBP
₹264,753 INR
As of November 1, 2026
Save £2,794 GBP (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £5,176 GBP at NZ Jewellers · As of September 1, 2026
View at NZ Jewellers

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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1555332615. Listed at 16 retailers as of October 30, 2026, with a 135% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.27
Carat
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1555332615
Dimensions6.87 × 6.92 × 4.32 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
6.87 mm6.92 mm1.27 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555332615
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.7%

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 1
Current: £4,869 GBP|Low: £2,075 GBP|High: £5,003 GBP|Avg: £3,104 GBP|-2.4%
NZ Jewellers
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 2, 2026
Retailer 8£2,075 GBP
Retailer 5£2,220 GBP
Retailer 13£2,481 GBP
Retailer 11£2,761 GBP
Retailer 3£2,795 GBP
Retailer 2£2,844 GBP
Retailer 6£2,858 GBP
Retailer 9£2,869 GBP
Retailer 4£2,902 GBP
Retailer 7£3,030 GBP
Retailer 12£3,225 GBP
Retailer 10£4,674 GBP
NZ Jewellers£4,869 GBP

30 data points across 13 retailers

16 retailers£2,075 GBP to £4,869 GBP

A
Cheapest Retailer
-
£2,075 GBP
₹264,753 INR
A
Retailer 2
-
£2,220 GBP
$2,974 USD
View
Final sale: no returns
A
Retailer 3
-
£2,481 GBP
$3,324 USD
View
A
Retailer 4
-
£2,761 GBP
$3,699 USD
View
A
Retailer 5
-
£2,795 GBP
$3,745 USD
View
A
Retailer 6
-
£2,844 GBP
View
A
Retailer 7
-
£2,858 GBP
$3,830 USD
View
A
Retailer 8
-
£2,869 GBP
$3,844 USD
View
A
Retailer 9
-
£2,902 GBP
$3,889 USD
View
Retailer 10
-
£2,955 GBP
$3,960 USD
View
Price last confirmed 55 days ago
A
Retailer 11
-
£3,030 GBP
€3,866 EUR
View
B+
Retailer 12
-
£3,225 GBP
$4,321 USD
View
Retailer 13
-
£3,411 GBP
$4,570 USD
View
Price last confirmed 56 days ago
B+
Retailer 14
-
£4,674 GBP
View
B
Retailer 15
-
£4,869 GBP
$6,524 USD
View
Most Expensive
NZ Jewellers
617cb3a1-0816-45b4-b7db-45ead0dd2766 · Sep 1
£5,176 GBP
$6,935 USD
View
Price last confirmed 61 days ago
15 more retailers have this diamond
Prices start from £2,075 GBPSave up to £2,794 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
1.27ct Round
£2,075 GBP