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Round|Natural|GIA

1.29ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 1463580564

Certificate GIA 1463580564

Diamond specifications and retailer prices

From £2,435 GBP
$3,262 USD
As of October 31, 2026
Save £1,251 GBP (34%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £3,685 GBP at 77 Diamonds · As of November 1, 2026
View at 77 Diamonds

About this 1.29ct natural round diamond

This 1.29ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1463580564. Listed at 8 retailers as of October 31, 2026, with prices from £2,435 to £3,685, a £1,251 spread on the same certified stone. 77 Diamonds lists it at £3,685. 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

1.29
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1463580564
Dimensions6.92 × 6.96 × 4.33 mm
L/W Ratio1.01
Top View
6.92 mm6.96 mm1.29 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1463580564
Side View
Table 57.0%CrownGirdlePavilionCulet: NoneDepth 62.4%

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: Oct 31
Current: £3,685 GBP|Low: £2,411 GBP|High: £3,709 GBP|Avg: £3,175 GBP|+1.8%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
November 1, 2026
Retailer 4£2,435 GBP
Retailer 3£3,185 GBP
Retailer 2£3,432 GBP
77 Diamonds£3,685 GBP

41 data points across 4 retailers

8 retailers£2,435 GBP to £3,685 GBP

A
Cheapest Retailer
-
£2,435 GBP
$3,262 USD
A
Retailer 2
-
£2,484 GBP
$3,328 USD
View
B+
Retailer 3
-
£2,680 GBP
A$5,524 AUD
View
B+
Retailer 4
-
£3,185 GBP
$4,268 USD
View
Retailer 5
-
£3,185 GBP
$4,268 USD
View
Price last confirmed 25 days ago
Retailer 6
-
£3,185 GBP
$4,268 USD
View
Price last confirmed 11 days ago
B
Retailer 7
-
£3,432 GBP
€4,379 EUR
View
Most Expensive
B
77 Diamonds
RBMBPCWWUYHN · Nov 1
£3,685 GBP
View
7 more retailers have this diamond
Prices start from £2,435 GBPSave up to £1,251 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
1.29ct Round
£2,435 GBP