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Round|Natural|GIA

1.00ct D I1 Round Natural Diamond

VG • D/I1 • GIA 1535121295

Certificate GIA 1535121295

Diamond specifications and retailer prices

From £1,376 GBP
HK$14,400 HKD
As of October 31, 2026
Save £859 GBP (38%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £3,741 GBP at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded D colour (colourless) and I1 clarity (included), with a very-good cut grade and certified by GIA 1535121295. Listed at 9 retailers as of October 30, 2026, with a 62% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
D
Colour
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle40.4°
OriginNatural
Grading LabGIA
CertificateGIA 1535121295
Dimensions6.35 × 6.27 × 3.91 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Needle, Indented Natural, Natural
Top View
6.35 mm6.27 mm1.00 ctD / I1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1535121295
Side View
Table 61.0%Crown 36°Girdle: MED-THKPavilion 40.4°Culet: NoneDepth 62.0%

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: £1,441 GBP|Low: £1,357 GBP|High: £2,235 GBP|Avg: £1,717 GBP|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 31, 2026
Retailer 2£1,376 GBP
Retailer 1£1,441 GBP
Retailer 6£1,675 GBP
Retailer 4£1,714 GBP
Retailer 5£1,790 GBP
Retailer 3£2,235 GBP

43 data points across 6 retailers

9 retailers£1,376 GBP to £2,235 GBP

A
Cheapest Retailer
-
£1,376 GBP
HK$14,400 HKD
A
Retailer 2
-
£1,441 GBP
₹183,885 INR
View
B+
Retailer 3
-
£1,714 GBP
$2,297 USD
View
Retailer 4
-
£1,790 GBP
$2,398 USD
View
Price last confirmed 16 days ago
Retailer 5
-
£1,790 GBP
$2,398 USD
View
Price last confirmed 12 days ago
Retailer 6
-
£1,873 GBP
$2,509 USD
View
Price last confirmed 16 days ago
Retailer 7
-
£2,065 GBP
$2,767 USD
View
Price last confirmed 13 days ago
B
Retailer 8
-
£2,235 GBP
€2,852 EUR
View
Most Expensive
NZ Jewellers
b03217db-35ba-419d-8d7d-055937d8397a · Oct 17
£3,741 GBP
$5,013 USD
View
Price last confirmed 14 days ago
8 more retailers have this diamond
Prices start from £1,376 GBPSave up to £859 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
1.00ct Round
£1,376 GBP