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Round|Natural|GIA

1.29ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 2556706754

Certificate GIA 2556706754

Diamond specifications and retailer prices

From £1,353 GBP
SGD 2,449 SGD
As of October 31, 2026
Save £1,278 GBP (49%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,631 GBP at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

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 2556706754. Listed at 12 retailers as of October 26, 2026, with prices from £1,353 to £2,631, a £1,278 spread on the same certified stone. Wholesale Diamonds Direct lists it at £2,631. 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
FluorescenceFaint
Crown angle36.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2556706754
Dimensions6.88 × 6.93 × 4.35 mm
L/W Ratio1.01
Culet sizeNone
Top View
6.88 mm6.93 mm1.29 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556706754
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.0%

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: £1,762 GBP|Low: £1,353 GBP|High: £2,788 GBP|Avg: £1,914 GBP|-0.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Wholesale Diamonds Direct
November 1, 2026
Retailer 8£1,353 GBP
Retailer 5£1,594 GBP
Retailer 7£1,608 GBP
Retailer 2£1,750 GBP
Retailer 1£1,762 GBP
Retailer 3£1,788 GBP
Retailer 9£1,904 GBP
Retailer 10£2,013 GBP
Retailer 6£2,019 GBP
Retailer 4£2,080 GBP
Wholesale Diamonds Direct£2,631 GBP

41 data points across 11 retailers

12 retailers£1,353 GBP to £2,631 GBP

A
Cheapest Retailer
-
£1,353 GBP
SGD 2,449 SGD
A
Retailer 2
-
£1,594 GBP
$2,136 USD
View
A
Retailer 3
-
£1,608 GBP
$2,154 USD
View
A
Retailer 4
-
£1,750 GBP
SGD 3,169 SGD
View
A
Retailer 5
-
£1,762 GBP
View
A
Retailer 6
-
£1,788 GBP
$2,396 USD
View
A
Retailer 7
-
£1,904 GBP
$2,551 USD
View
A
Retailer 8
-
£2,013 GBP
$2,697 USD
View
A
Retailer 9
-
£2,019 GBP
View
A
Retailer 10
-
£2,080 GBP
€2,654 EUR
View
A
Retailer 11
-
£2,159 GBP
$2,893 USD
View
Most Expensive
A
Wholesale Diamonds Direct
570868304 · Oct 26
£2,631 GBP
$3,525 USD
View
11 more retailers have this diamond
Prices start from £1,353 GBPSave up to £1,278 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
£1,353 GBP