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Round|Natural|GIA

1.50ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 7556903212

Certificate GIA 7556903212

Diamond specifications and retailer prices

From £3,467 GBP
As of November 1, 2026
Save £4,226 GBP (55%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: £7,692 GBP at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct 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 7556903212. Listed at 27 retailers as of November 1, 2026, with prices from £3,467 to £7,692, a £4,226 spread on the same certified stone. NZ Jewellers lists it at £7,692. 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

1.50
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 7556903212
Dimensions7.20 × 7.27 × 4.60 mm
L/W Ratio1.01
Star length50%
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Needle, Natural
Top View
7.20 mm7.27 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7556903212
Side View
Table 55.0%Crown 36.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.5%

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: £7,692 GBP|Low: £3,467 GBP|High: £7,692 GBP|Avg: £4,562 GBP|+4.1%
NZ Jewellers
Retailer 2
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Retailer 27
November 5, 2026
Retailer 26£3,467 GBP
Retailer 5£3,520 GBP
Retailer 7£3,532 GBP
Retailer 12£3,634 GBP
Retailer 24£3,635 GBP
Retailer 8£3,680 GBP
Retailer 14£3,846 GBP
Retailer 25£3,896 GBP
Retailer 18£4,028 GBP
Retailer 15£4,091 GBP
Retailer 9£4,117 GBP
Retailer 3£4,167 GBP
Retailer 10£4,167 GBP
Retailer 27£4,167 GBP
Retailer 16£4,205 GBP
Retailer 6£4,241 GBP
Retailer 13£4,340 GBP
Retailer 19£4,450 GBP
Retailer 20£4,557 GBP
Retailer 17£4,563 GBP
Retailer 21£4,730 GBP
Retailer 11£4,808 GBP
Retailer 2£4,908 GBP
Retailer 23£5,650 GBP
Retailer 4£6,663 GBP
Retailer 22£6,776 GBP
NZ Jewellers£7,692 GBP

32 data points across 27 retailers

27 retailers£3,467 GBP to £7,692 GBP

A
Cheapest Retailer
-
£3,467 GBP
A
Retailer 2
-
£3,520 GBP
View
A
Retailer 3
-
£3,532 GBP
View
A
Retailer 4
-
£3,634 GBP
View
A
Retailer 5
-
£3,635 GBP
View
A
Retailer 6
-
£3,680 GBP
View
A
Retailer 7
-
£3,846 GBP
View
Final sale: no returns
A
Retailer 8
-
£3,896 GBP
View
B+
Retailer 9
-
£4,028 GBP
View
B+
Retailer 10
-
£4,091 GBP
View
B+
Retailer 11
-
£4,117 GBP
View
B+
Retailer 12
-
£4,167 GBP
View
B+
Retailer 13
-
£4,167 GBP
View
Retailer 14
-
£4,167 GBP
View
Price last confirmed 8 days ago
Retailer 15
-
£4,205 GBP
View
Price last confirmed 22 days ago
B+
Retailer 16
-
£4,241 GBP
View
B+
Retailer 17
-
£4,340 GBP
View
Retailer 18
-
£4,450 GBP
View
Price last confirmed 33 days ago
Retailer 19
-
£4,557 GBP
View
Price last confirmed 31 days ago
B+
Retailer 20
-
£4,563 GBP
View
B+
Retailer 21
-
£4,730 GBP
View
B+
Retailer 22
-
£4,808 GBP
View
B+
Retailer 23
-
£4,908 GBP
View
B
Retailer 24
-
£5,650 GBP
View
B
Retailer 25
-
£6,663 GBP
View
B
Retailer 26
-
£6,776 GBP
View
Most Expensive
B
NZ Jewellers
bbbb6167-a518-4cac-a81f-c7adbe5a2fe3 · Nov 2
£7,692 GBP
$10,296 USD
View
26 more retailers have this diamond
Prices start from £3,467 GBPSave up to £4,226 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
1.50ct Round
£3,467 GBP