CaratHunter
Plans
Round|Natural|GIA

1.29ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6542103094

Certificate GIA 6542103094

Diamond specifications and retailer prices

From £1,829 GBP
$2,450 USD
As of October 26, 2026
Save £2,883 GBP (61%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £4,712 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

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 6542103094. Listed at 12 retailers as of October 26, 2026, with prices from £1,829 to £4,712, a £2,883 spread on the same certified stone. NZ Jewellers lists it at £4,712. 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
Crown angle35°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6542103094
Dimensions6.90 × 6.93 × 4.35 mm
L/W Ratio1.00
Top View
6.90 mm6.93 mm1.29 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6542103094
Side View
Table 57.0%Crown 35°Girdle: THN-STKPavilion 41.2°Culet: NoneDepth 62.9%

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 26
Current: £4,712 GBP|Low: £2,042 GBP|High: £4,712 GBP|Avg: £2,752 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 6£2,042 GBP
Retailer 8£2,042 GBP
Retailer 5£2,120 GBP
Retailer 7£2,356 GBP
Retailer 3£2,396 GBP
Retailer 9£2,617 GBP
Retailer 4£2,627 GBP
Retailer 2£3,770 GBP
NZ Jewellers£4,712 GBP

41 data points across 9 retailers

12 retailers£1,829 GBP to £4,712 GBP

A
Cheapest Retailer
-
£1,829 GBP
$2,450 USD
A
Retailer 2
-
£1,918 GBP
$2,570 USD
View
A
Retailer 3
-
£2,042 GBP
$2,736 USD
View
A
Retailer 4
-
£2,042 GBP
$2,736 USD
View
A
Retailer 5
-
£2,120 GBP
$2,841 USD
View
A
Retailer 6
-
£2,233 GBP
CA$4,155 CAD
View
A
Retailer 7
-
£2,356 GBP
$3,157 USD
View
A
Retailer 8
-
£2,396 GBP
View
Retailer 9
-
£2,617 GBP
$3,506 USD
View
Price last confirmed 9 days ago
A
Retailer 10
-
£2,627 GBP
€3,352 EUR
View
B+
Retailer 11
-
£3,770 GBP
View
Most Expensive
B
NZ Jewellers
c654bc27-89ee-406e-89b9-5554051b9169 · Oct 30
£4,712 GBP
$6,313 USD
View
11 more retailers have this diamond
Prices start from £1,829 GBPSave up to £2,883 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
£1,829 GBP