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Round|Natural|GIA

1.54ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7518908709

Certificate GIA 7518908709

Diamond specifications and retailer prices

From £3,573 GBP
HK$37,400 HKD
As of October 31, 2026
Save £4,470 GBP (56%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £8,042 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.54ct natural round diamond

This 1.54ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7518908709. Listed at 17 retailers as of October 30, 2026, with prices from £3,573 to £8,042, a £4,470 spread on the same certified stone. NZ Jewellers lists it at £8,042. 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

1.54
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7518908709
Dimensions7.36 × 7.31 × 4.54 mm
L/W Ratio1.01
Star length45%
Lower girdle80%
Cert comments
Additional clouds are not shown. Pinpoints are not shown.
Key to symbols
Cloud, Feather, Crystal, Needle
Top View
7.36 mm7.31 mm1.54 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7518908709
Side View
Table 60.0%Crown 35°Girdle: STK-STKPavilion 41°Culet: NoneDepth 61.9%

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: Oct 31
Current: £8,042 GBP|Low: £3,535 GBP|High: £8,042 GBP|Avg: £5,081 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
Retailer 13
Retailer 14
Retailer 15
October 31, 2026
Retailer 9£3,573 GBP
Retailer 8£3,641 GBP
Retailer 6£4,438 GBP
Retailer 14£4,467 GBP
Retailer 10£4,582 GBP
Retailer 7£4,736 GBP
Retailer 3£4,809 GBP
Retailer 13£4,809 GBP
Retailer 15£4,809 GBP
Retailer 4£4,927 GBP
Retailer 11£5,255 GBP
Retailer 12£5,548 GBP
Retailer 2£5,908 GBP
Retailer 5£7,094 GBP
NZ Jewellers£8,042 GBP

33 data points across 15 retailers

17 retailers£3,573 GBP to £8,042 GBP

A
Cheapest Retailer
-
£3,573 GBP
HK$37,400 HKD
A
Retailer 2
-
£3,641 GBP
₹464,652 INR
View
Retailer 3
-
£4,111 GBP
SGD 7,444 SGD
View
Price last confirmed 18 days ago
B+
Retailer 4
-
£4,234 GBP
$5,673 USD
View
B+
Retailer 5
-
£4,438 GBP
$5,947 USD
View
Final sale: no returns
B+
Retailer 6
-
£4,467 GBP
$5,985 USD
View
B+
Retailer 7
-
£4,582 GBP
View
Retailer 8
-
£4,736 GBP
A$9,763 AUD
View
Price last confirmed 22 days ago
B+
Retailer 9
-
£4,809 GBP
$6,443 USD
View
B+
Retailer 10
-
£4,809 GBP
$6,443 USD
View
B+
Retailer 11
-
£4,809 GBP
$6,443 USD
View
B+
Retailer 12
-
£4,927 GBP
$6,601 USD
View
B+
Retailer 13
-
£5,255 GBP
€6,706 EUR
View
B
Retailer 14
-
£5,548 GBP
$7,434 USD
View
B+
Retailer 15
-
£5,908 GBP
ZAR 127,886 ZAR
View
B
Retailer 16
-
£7,094 GBP
View
Most Expensive
B
NZ Jewellers
3c03c2d9-1418-4dac-95ec-90d54b308e71 · Oct 30
£8,042 GBP
$10,776 USD
View
16 more retailers have this diamond
Prices start from £3,573 GBPSave up to £4,470 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
1.54ct Round
£3,573 GBP