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Round|Natural|GIA

1.51ct I SI2 Round Natural Diamond

EX • I/SI2 • GIA 6562410163

Certificate GIA 6562410163

Diamond specifications and retailer prices

From £3,225 GBP
As of November 6, 2026
Save £3,956 GBP (55%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £7,180 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct 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 6562410163. Listed at 17 retailers as of November 5, 2026, with prices from £3,225 to £7,180, a £3,956 spread on the same certified stone. NZ Jewellers lists it at £7,180. 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

1.51
Carat
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6562410163
Dimensions7.31 × 7.36 × 4.57 mm
L/W Ratio1.01
Culet sizeNone
Top View
7.31 mm7.36 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6562410163
Side View
Table 56.0%Crown 34°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £7,180 GBP|Low: £3,225 GBP|High: £7,180 GBP|Avg: £4,270 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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
November 6, 2026
Retailer 4£3,225 GBP
Retailer 12£3,254 GBP
Retailer 6£3,329 GBP
Retailer 18£3,340 GBP
Retailer 20£3,425 GBP
Retailer 14£3,432 GBP
Retailer 3£3,890 GBP
Retailer 22£3,890 GBP
Retailer 10£3,961 GBP
Retailer 21£4,121 GBP
Retailer 11£4,123 GBP
Retailer 13£4,159 GBP
Retailer 9£4,361 GBP
Retailer 5£4,391 GBP
Retailer 7£4,391 GBP
Retailer 19£4,488 GBP
Retailer 8£4,540 GBP
Retailer 17£4,595 GBP
Retailer 2£4,618 GBP
Retailer 15£5,686 GBP
Retailer 16£6,307 GBP
NZ Jewellers£7,180 GBP

16 data points across 22 retailers

17 retailers£3,225 GBP to £7,180 GBP

A
Cheapest Retailer
-
£3,225 GBP
A
Retailer 2
-
£3,329 GBP
View
A
Retailer 3
-
£3,340 GBP
View
A
Retailer 4
-
£3,425 GBP
View
A
Retailer 5
-
£3,571 GBP
View
B+
Retailer 6
-
£3,890 GBP
View
B+
Retailer 7
-
£3,890 GBP
View
B+
Retailer 8
-
£4,121 GBP
View
B+
Retailer 9
-
£4,159 GBP
View
B+
Retailer 10
-
£4,391 GBP
View
B+
Retailer 11
-
£4,391 GBP
View
B+
Retailer 12
-
£4,488 GBP
View
B+
Retailer 13
-
£4,540 GBP
View
B+
Retailer 14
-
£4,595 GBP
View
B+
Retailer 15
-
£4,618 GBP
View
B
Retailer 16
-
£6,307 GBP
View
Most Expensive
B
NZ Jewellers
969cb67c-ae04-4e6f-9498-6321ccc71c7a · Nov 5
£7,180 GBP
$9,664 USD
View
16 more retailers have this diamond
Prices start from £3,225 GBPSave up to £3,956 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
1.51ct Round
£3,225 GBP