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Round|Natural|GIA

0.73ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 6491189340

Certificate GIA 6491189340

Diamond specifications and retailer prices

From £1,206 GBP
As of November 5, 2026
Save £1,401 GBP (54%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,639 GBP at NZ Jewellers · As of November 5, 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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6491189340. Listed at 19 retailers as of November 4, 2026, with a 116% 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
D
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle32°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6491189340
Dimensions5.83 × 5.81 × 3.53 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
5.83 mm5.81 mm0.73 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6491189340
Side View
Table 59.0%Crown 32°Girdle: Slightly ThickPavilion 41.4°Culet: NoneDepth 60.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £3,639 GBP|Low: £1,040 GBP|High: £3,639 GBP|Avg: £1,916 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 5£1,248 GBP
Retailer 7£1,351 GBP
Retailer 6£1,414 GBP
Retailer 8£1,560 GBP
Retailer 2£1,601 GBP
Retailer 3£1,888 GBP
Retailer 4£2,607 GBP
NZ Jewellers£3,639 GBP

40 data points across 8 retailers

19 retailers£1,206 GBP to £2,607 GBP

B+
Cheapest Retailer
-
£1,206 GBP
B+
Retailer 2
-
£1,232 GBP
View
B+
Retailer 3
-
£1,248 GBP
View
Final sale: no returns
B+
Retailer 4
-
£1,276 GBP
View
B+
Retailer 5
-
£1,304 GBP
View
Retailer 6
-
£1,351 GBP
View
Price last confirmed 8 days ago
B+
Retailer 7
-
£1,351 GBP
View
B
Retailer 8
-
£1,414 GBP
View
B
Retailer 9
-
£1,560 GBP
View
B
Retailer 10
-
£1,583 GBP
View
B
Retailer 11
-
£1,583 GBP
View
B
Retailer 12
-
£1,601 GBP
View
B
Retailer 13
-
£1,635 GBP
View
B
Retailer 14
-
£1,703 GBP
View
B
Retailer 15
-
£1,716 GBP
View
B
Retailer 16
-
£1,888 GBP
View
B
Retailer 17
-
£2,002 GBP
View
B
Retailer 18
-
£2,607 GBP
View
Most Expensive
NZ Jewellers
aef735d3-74c7-48ed-9fb5-71570f84fdda · Nov 5
£3,639 GBP
$4,898 USD
View
Price under review
18 more retailers have this diamond
Prices start from £1,206 GBPSave up to £1,401 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.

B+
0.73ct Round
£1,206 GBP