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Round|Natural|GIA

1.01ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 7551973016

Certificate GIA 7551973016

Diamond specifications and retailer prices

From £1,538 GBP
As of November 5, 2026
Save £2,092 GBP (58%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £4,182 GBP at NZ Jewellers · As of September 28, 2026
View at NZ Jewellers

About this 1.01ct natural round diamond

This 1.01ct natural round sits in the classic one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7551973016. Listed at 13 retailers as of November 4, 2026, with a 136% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.01
Carat
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 7551973016
Dimensions6.39 × 6.42 × 4.00 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Needle
Top View
6.39 mm6.42 mm1.01 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7551973016
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.5%

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: £2,399 GBP|Low: £1,522 GBP|High: £3,758 GBP|Avg: £2,275 GBP|+4.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 2£1,538 GBP
Retailer 4£1,861 GBP
Retailer 8£1,918 GBP
Retailer 9£2,000 GBP
Retailer 7£2,183 GBP
Retailer 3£2,186 GBP
Retailer 1£2,399 GBP
Retailer 6£2,410 GBP
Retailer 5£3,630 GBP

37 data points across 9 retailers

13 retailers£1,538 GBP to £3,630 GBP

A
Cheapest Retailer
-
£1,538 GBP
A
Retailer 2
-
£1,861 GBP
View
A
Retailer 3
-
£1,918 GBP
View
Final sale: no returns
Retailer 4
-
£2,000 GBP
View
Price last confirmed 39 days ago
Retailer 5
-
£2,077 GBP
View
Price last confirmed 38 days ago
A
Retailer 6
-
£2,183 GBP
View
A
Retailer 7
-
£2,186 GBP
View
Retailer 8
-
£2,308 GBP
View
Price last confirmed 38 days ago
Retailer 9
-
£2,350 GBP
View
Price last confirmed 60 days ago
B+
Retailer 10
-
£2,399 GBP
View
B+
Retailer 11
-
£2,410 GBP
View
B
Retailer 12
-
£3,630 GBP
View
Most Expensive
NZ Jewellers
246ed456-7b98-4e84-a064-a97fad39c523 · Sep 28
£4,182 GBP
$5,628 USD
View
Price last confirmed 38 days ago
12 more retailers have this diamond
Prices start from £1,538 GBPSave up to £2,092 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
1.01ct Round
£1,538 GBP