CaratHunter
Plans
Heart|Natural|IGI

1.03ct D SI2 Heart Natural Diamond

VG • D/SI2 • IGI 830653378

Shape and cutting style on the report: Heart brilliant

Certificate IGI 830653378

Diamond specifications and retailer prices

From £1,048 GBP
As of November 5, 2026
Save £734 GBP (41%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,783 GBP at Wholesale Diamonds Direct · As of November 6, 2026
View at Wholesale Diamonds Direct

About this 1.03ct natural heart diamond

This 1.03ct natural heart sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 830653378. Listed at 4 retailers as of November 5, 2026, with prices from £1,048 to £1,783, a £734 spread on the same certified stone. Wholesale Diamonds Direct lists it at £1,783. 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

1.03
Carat
D
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.9°
Pavilion angle39.7°
OriginNatural
Grading LabIGI
CertificateIGI 830653378
Dimensions6.10 × 6.91 × 4.12 mm
L/W Ratio1.13
Girdle conditionFaceted
Top View
6.10 mm6.91 mm1.03 ctD / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 830653378
Side View
Table 59.0%Crown 37.9°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 59.6%

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: Nov 5
Current: £1,048 GBP|Low: £1,047 GBP|High: £1,783 GBP|Avg: £1,282 GBP|+0.1%
Retailer 1
Retailer 2
Retailer 3
Wholesale Diamonds Direct
November 5, 2026
Retailer 1£1,048 GBP
Retailer 2£1,053 GBP
Retailer 3£1,071 GBP
Wholesale Diamonds Direct£1,783 GBP

4 data points across 4 retailers

4 retailers£1,048 GBP to £1,783 GBP

A
Cheapest Retailer
-
£1,048 GBP
A
Retailer 2
-
£1,053 GBP
View
A
Retailer 3
-
£1,071 GBP
View
Most Expensive
B+
Wholesale Diamonds Direct
539595656 · Nov 6
£1,783 GBP
$2,386 USD
View
3 more retailers have this diamond
Prices start from £1,048 GBPSave up to £734 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 Heart
£1,048 GBP