Round|Natural|GIA

0.73ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 1448030256

Certificate GIA 1448030256

Diamond specifications and retailer prices

From £447 GBP
As of November 1, 2026
Save £771 GBP (63%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,654 GBP at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 0.73ct natural round diamond

This 0.73ct natural round sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1448030256. Listed at 15 retailers as of November 1, 2026, with a 173% 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

0.73
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1448030256
Dimensions5.75 × 5.71 × 3.61 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather
Top View
5.75 mm5.71 mm0.73 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1448030256
Side View
Table 56.0%Crown 36.5°Girdle: THN-MEDPavilion 40.6°Culet: NoneDepth 63.1%

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 1
Current: £1,654 GBP|Low: £447 GBP|High: £1,654 GBP|Avg: £718 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 4£447 GBP
Retailer 9£509 GBP
Retailer 10£528 GBP
Retailer 11£548 GBP
Retailer 3£553 GBP
Retailer 12£609 GBP
Retailer 8£627 GBP
Retailer 5£708 GBP
Retailer 6£724 GBP
Retailer 2£743 GBP
Retailer 7£1,218 GBP
NZ Jewellers£1,654 GBP

42 data points across 12 retailers

15 retailers£447 GBP to £1,218 GBP

A
Cheapest Retailer
-
£447 GBP
A
Retailer 2
-
£509 GBP
View
Retailer 3
-
£528 GBP
View
Price last confirmed 45 days ago
Retailer 4
-
£528 GBP
View
Price last confirmed 11 days ago
Retailer 5
-
£548 GBP
View
Price last confirmed 12 days ago
Retailer 6
-
£553 GBP
View
Price last confirmed 11 days ago
Retailer 7
-
£609 GBP
View
Price last confirmed 10 days ago
Retailer 8
-
£609 GBP
View
Price last confirmed 44 days ago
B+
Retailer 9
-
£627 GBP
View
B+
Retailer 10
-
£708 GBP
View
B
Retailer 11
-
£724 GBP
View
B+
Retailer 12
-
£743 GBP
View
B
Retailer 13
-
£1,218 GBP
View
Retailer 14
-
£1,654 GBP
View
Price last confirmed 39 days ago
Most Expensive
NZ Jewellers
ac6cb801-0748-4355-9943-b3c1222fa758 · Oct 27
£1,654 GBP
$2,226 USD
View
Price last confirmed 10 days ago
14 more retailers have this diamond
Prices start from £447 GBPSave up to £771 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
0.73ct Round
£447 GBP