CaratHunter
Plans
Round|Natural|GIA

1.03ct D I1 Round Natural Diamond

EX • D/I1 • GIA 6372827657

Certificate GIA 6372827657

Diamond specifications and retailer prices

From £1,643 GBP
$2,202 USD
As of October 30, 2026
Save £2,555 GBP (61%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £4,199 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.03ct natural round diamond

This 1.03ct natural round sits in the classic one-carat band, graded D colour (colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 6372827657. Listed at 8 retailers as of October 30, 2026, with prices from £1,643 to £4,199, a £2,555 spread on the same certified stone. NZ Jewellers lists it at £4,199. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
D
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6372827657
Dimensions6.61 × 6.59 × 3.91 mm
L/W Ratio1.00
Top View
6.61 mm6.59 mm1.03 ctD / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6372827657
Side View
Table 60.0%CrownGirdlePavilionCulet: NoneDepth 59.2%

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 30
Current: £4,199 GBP|Low: £1,643 GBP|High: £4,417 GBP|Avg: £2,392 GBP|-4.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 8£1,643 GBP
Retailer 7£1,708 GBP
Retailer 4£1,820 GBP
Retailer 6£1,820 GBP
Retailer 5£1,903 GBP
Retailer 3£2,099 GBP
Retailer 2£2,514 GBP
Retailer 9£3,092 GBP
NZ Jewellers£4,199 GBP

16 data points across 9 retailers

8 retailers£1,643 GBP to £4,199 GBP

A
Cheapest Retailer
-
£1,643 GBP
$2,202 USD
B+
Retailer 2
-
£1,708 GBP
$2,288 USD
View
B+
Retailer 3
-
£1,820 GBP
$2,438 USD
View
B+
Retailer 4
-
£1,820 GBP
$2,438 USD
View
B+
Retailer 5
-
£1,903 GBP
$2,550 USD
View
B+
Retailer 6
-
£2,099 GBP
$2,813 USD
View
B
Retailer 7
-
£2,514 GBP
€3,208 EUR
View
Most Expensive
B
NZ Jewellers
34a260c6-525d-4597-b9c1-771706410eac · Oct 30
£4,199 GBP
$5,626 USD
View
7 more retailers have this diamond
Prices start from £1,643 GBPSave up to £2,555 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
1.03ct Round
£1,643 GBP