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Round|Natural|GIA

1.50ct I I1 Round Natural Diamond

VG • I/I1 • GIA 6415661187

Certificate GIA 6415661187

Diamond specifications and retailer prices

From £2,923 GBP
HK$30,600 HKD
As of November 1, 2026
Save £3,703 GBP (56%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £6,627 GBP at NZ Jewellers · As of October 30, 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 I1 clarity (included), with a very-good cut grade and certified by GIA 6415661187. Listed at 12 retailers as of October 30, 2026, with prices from £2,923 to £6,627, a £3,703 spread on the same certified stone. NZ Jewellers lists it at £6,627. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
I
Colour
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.5°
Pavilion angle40.4°
OriginNatural
Grading LabGIA
CertificateGIA 6415661187
Dimensions7.15 × 7.09 × 4.62 mm
L/W Ratio1.01
Top View
7.15 mm7.09 mm1.50 ctI / I1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6415661187
Side View
Table 57.0%Crown 38.5°Girdle: MED-THKPavilion 40.4°Culet: NoneDepth 64.8%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: £6,627 GBP|Low: £2,895 GBP|High: £6,731 GBP|Avg: £3,946 GBP|-1.6%
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
November 1, 2026
Retailer 7£2,923 GBP
Retailer 12£2,987 GBP
Retailer 10£3,067 GBP
Retailer 6£3,179 GBP
Retailer 4£3,590 GBP
Retailer 11£3,590 GBP
Retailer 14£3,590 GBP
Retailer 8£4,023 GBP
Retailer 13£4,023 GBP
Retailer 3£4,141 GBP
Retailer 9£4,157 GBP
Retailer 2£4,464 GBP
Retailer 5£4,789 GBP
NZ Jewellers£6,627 GBP

23 data points across 14 retailers

12 retailers£2,923 GBP to £6,627 GBP

B+
Cheapest Retailer
-
£2,923 GBP
HK$30,600 HKD
B+
Retailer 2
-
£2,987 GBP
$4,002 USD
View
B+
Retailer 3
-
£3,067 GBP
$4,110 USD
View
B
Retailer 4
-
£3,590 GBP
$4,810 USD
View
B
Retailer 5
-
£3,590 GBP
$4,810 USD
View
B
Retailer 6
-
£3,590 GBP
$4,810 USD
View
B
Retailer 7
-
£4,023 GBP
$5,390 USD
View
B
Retailer 8
-
£4,023 GBP
$5,390 USD
View
B
Retailer 9
-
£4,141 GBP
$5,549 USD
View
B
Retailer 10
-
£4,157 GBP
$5,570 USD
View
B
Retailer 11
-
£4,464 GBP
€5,697 EUR
View
Most Expensive
C
NZ Jewellers
a57d2745-4cbc-4e94-9e76-443b2efc3436 · Oct 30
£6,627 GBP
$8,879 USD
View
11 more retailers have this diamond
Prices start from £2,923 GBPSave up to £3,703 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+
1.50ct Round
£2,923 GBP