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Round|Natural|GIA

1.50ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6452167699

Certificate GIA 6452167699

Diamond specifications and retailer prices

From £5,839 GBP
$7,823 USD
As of October 30, 2026
Save £4,882 GBP (46%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £10,720 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6452167699. Listed at 18 retailers as of October 30, 2026, with prices from £5,839 to £10,720, a £4,882 spread on the same certified stone. NZ Jewellers lists it at £10,720. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6452167699
Dimensions7.39 × 7.35 × 4.46 mm
L/W Ratio1.01
Star length45%
Lower girdle75%
Top View
7.39 mm7.35 mm1.50 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6452167699
Side View
Table 62.0%Crown 33°Girdle: Slightly ThickPavilion 41.6°Culet: NoneDepth 60.4%

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: Oct 30
Current: £10,720 GBP|Low: £5,360 GBP|High: £10,720 GBP|Avg: £7,803 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
October 31, 2026
Retailer 7£5,732 GBP
Retailer 8£6,432 GBP
Retailer 11£6,432 GBP
Retailer 12£6,968 GBP
Retailer 2£6,982 GBP
Retailer 9£7,075 GBP
Retailer 5£8,005 GBP
Retailer 10£8,040 GBP
Retailer 3£8,466 GBP
Retailer 4£9,169 GBP
Retailer 6£10,099 GBP
NZ Jewellers£10,720 GBP

38 data points across 12 retailers

18 retailers£5,839 GBP to £10,720 GBP

Retailer 1
-
£5,732 GBP
$7,680 USD
Price last confirmed 13 days ago
B+
Retailer 2
-
£5,839 GBP
$7,823 USD
View
B
Retailer 3
-
£6,023 GBP
$8,070 USD
View
B
Retailer 4
-
£6,278 GBP
CA$11,683 CAD
View
B
Retailer 5
-
£6,432 GBP
$8,618 USD
View
B
Retailer 6
-
£6,432 GBP
$8,618 USD
View
Final sale: no returns
B
Retailer 7
-
£6,968 GBP
$9,336 USD
View
B
Retailer 8
-
£6,982 GBP
View
B
Retailer 9
-
£7,075 GBP
$9,480 USD
View
B
Retailer 10
-
£7,402 GBP
$9,918 USD
View
B
Retailer 11
-
£7,598 GBP
$10,180 USD
View
B
Retailer 12
-
£7,598 GBP
$10,180 USD
View
B
Retailer 13
-
£7,851 GBP
$10,520 USD
View
B
Retailer 14
-
£8,005 GBP
€10,215 EUR
View
B
Retailer 15
-
£8,040 GBP
$10,773 USD
View
Retailer 16
-
£8,466 GBP
$11,344 USD
View
Price last confirmed 8 days ago
B
Retailer 17
-
£10,099 GBP
View
Most Expensive
B
NZ Jewellers
7873b98c-a4e4-4365-a09c-061d1d43ec55 · Oct 30
£10,720 GBP
$14,364 USD
View
17 more retailers have this diamond
Prices start from £5,839 GBPSave up to £4,882 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
£5,839 GBP