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Round|Natural|GIA

1.30ct L SI1 Round Natural Diamond

EX • L/SI1 • GIA 1499141704

Certificate GIA 1499141704

Diamond specifications and retailer prices

From £1,360 GBP
As of November 4, 2026
Save £2,461 GBP (64%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £3,820 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.3ct natural round diamond

This 1.3ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1499141704. Listed at 14 retailers as of November 4, 2026, with prices from £1,360 to £3,820, a £2,461 spread on the same certified stone. NZ Jewellers lists it at £3,820. 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

1.30
Carat
L
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1499141704
Dimensions6.87 × 6.93 × 4.35 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Cert comments
Additional clouds are not shown. Pinpoints are not shown.
Key to symbols
Crystal, Cloud, Feather, Needle, Indented Natural, Natural
Top View
6.87 mm6.93 mm1.30 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1499141704
Side View
Table 58.0%Crown 36°Girdle: THN-STKPavilion 40.8°Culet: NoneDepth 63.0%

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 4
Current: £3,820 GBP|Low: £1,350 GBP|High: £3,832 GBP|Avg: £2,012 GBP|-0.3%
NZ Jewellers
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
November 6, 2026
Retailer 10£1,360 GBP
Retailer 12£1,603 GBP
Retailer 13£1,650 GBP
Retailer 7£1,781 GBP
Retailer 14£1,804 GBP
Retailer 11£1,817 GBP
Retailer 4£1,827 GBP
Retailer 6£1,827 GBP
Retailer 15£1,912 GBP
Retailer 2£1,921 GBP
Retailer 5£1,931 GBP
Retailer 3£2,109 GBP
Retailer 9£2,230 GBP
Retailer 8£2,264 GBP
NZ Jewellers£3,820 GBP

44 data points across 15 retailers

14 retailers£1,360 GBP to £3,820 GBP

A
Cheapest Retailer
-
£1,360 GBP
B+
Retailer 2
-
£1,603 GBP
View
B+
Retailer 3
-
£1,650 GBP
View
B+
Retailer 4
-
£1,781 GBP
View
B
Retailer 5
-
£1,817 GBP
View
Retailer 6
-
£1,827 GBP
View
Price last confirmed 8 days ago
B
Retailer 7
-
£1,827 GBP
View
B
Retailer 8
-
£1,912 GBP
View
B
Retailer 9
-
£1,921 GBP
View
B
Retailer 10
-
£1,931 GBP
View
B
Retailer 11
-
£2,109 GBP
View
B
Retailer 12
-
£2,230 GBP
View
B
Retailer 13
-
£2,264 GBP
View
Most Expensive
C
NZ Jewellers
a0cd2c9f-6d0f-448f-8c18-217fc99f84b1 · Nov 5
£3,820 GBP
$5,142 USD
View
13 more retailers have this diamond
Prices start from £1,360 GBPSave up to £2,461 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
1.30ct Round
£1,360 GBP