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Round|Natural|GIA

3.03ct F SI2 Round Natural Diamond

EX • F/SI2 • GIA 1558278992

Certificate GIA 1558278992

Diamond specifications and retailer prices

From £16,785 GBP
$22,490 USD
As of November 1, 2026
Save £5,590 GBP (25%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £27,840 GBP at Aurelinne · As of September 19, 2026
View at Aurelinne

About this 3.03ct natural round diamond

This 3.03ct natural round sits in the three to five carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1558278992. Listed at 9 retailers as of October 30, 2026, with a 33% 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

3.03
Carat
F
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1558278992
Dimensions9.15 × 9.20 × 5.76 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
9.15 mm9.20 mm3.03 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1558278992
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.7%

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: £27,840 GBP|Low: £16,785 GBP|High: £35,060 GBP|Avg: £23,151 GBP
Aurelinne
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 1, 2026
Retailer 2£16,785 GBP
Retailer 12£18,684 GBP
Retailer 7£19,173 GBP
Retailer 19£19,876 GBP
Retailer 13£20,102 GBP
Retailer 14£20,733 GBP
Retailer 15£20,733 GBP
Retailer 8£21,145 GBP
Retailer 20£22,138 GBP
Retailer 16£22,375 GBP
Retailer 18£22,770 GBP
Retailer 10£22,980 GBP
Retailer 5£23,353 GBP
Retailer 3£23,564 GBP
Retailer 9£24,541 GBP
Retailer 4£24,746 GBP
Retailer 6£25,368 GBP
Retailer 11£25,815 GBP
Aurelinne£27,840 GBP
Retailer 17£35,060 GBP

14 data points across 20 retailers

9 retailers£16,785 GBP to £22,375 GBP

A
Cheapest Retailer
-
£16,785 GBP
$22,490 USD
Retailer 2
-
£19,173 GBP
HK$200,700 HKD
View
Price last confirmed 45 days ago
A
Retailer 3
-
£20,102 GBP
$26,934 USD
View
A
Retailer 4
-
£20,733 GBP
$27,780 USD
View
A
Retailer 5
-
£20,733 GBP
$27,780 USD
View
A
Retailer 6
-
£22,375 GBP
$29,980 USD
View
Retailer 7
-
£23,353 GBP
$31,290 USD
View
Price last confirmed 44 days ago
Retailer 8
-
£24,541 GBP
$32,882 USD
View
Price last confirmed 51 days ago
Most Expensive
Aurelinne
e07217f7-5ed0-464b-896b-de7fa7a56ab3 · Sep 19
£27,840 GBP
$37,302 USD
View
Price last confirmed 43 days ago
8 more retailers have this diamond
Prices start from £16,785 GBPSave up to £5,590 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
3.03ct Round
£16,785 GBP