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Round|Natural|GIA

1.50ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6552615208

Certificate GIA 6552615208

Diamond specifications and retailer prices

From £2,244 GBP
As of November 6, 2026
Save £2,833 GBP (56%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £5,290 GBP at NZ Jewellers · As of September 26, 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6552615208. Listed at 16 retailers as of November 2, 2026, with a 126% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6552615208
Dimensions7.31 × 7.34 × 4.55 mm
L/W Ratio1.00
Girdle conditionFaceted
Key to symbols
Twinning Wisp, Feather, Cloud, Indented Natural
Top View
7.31 mm7.34 mm1.50 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6552615208
Side View
Table 56.0%Crown 36°Girdle: THN-MEDPavilion 40.6°Culet: NoneDepth 62.1%

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 6
Current: £5,290 GBP|Low: £2,225 GBP|High: £5,290 GBP|Avg: £3,370 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
November 6, 2026
Retailer 13£2,244 GBP
Retailer 14£2,508 GBP
Retailer 15£2,723 GBP
Retailer 7£2,779 GBP
Retailer 10£2,819 GBP
Retailer 8£2,827 GBP
Retailer 11£2,870 GBP
Retailer 3£3,037 GBP
Retailer 6£3,037 GBP
Retailer 5£3,219 GBP
Retailer 9£3,410 GBP
Retailer 4£3,503 GBP
Retailer 2£4,008 GBP
Retailer 12£5,077 GBP
NZ Jewellers£5,290 GBP

43 data points across 15 retailers

16 retailers£2,244 GBP to £5,077 GBP

A
Cheapest Retailer
-
£2,244 GBP
A
Retailer 2
-
£2,508 GBP
View
B+
Retailer 3
-
£2,672 GBP
View
B+
Retailer 4
-
£2,723 GBP
View
B+
Retailer 5
-
£2,779 GBP
View
A
Retailer 6
-
£2,819 GBP
View
B+
Retailer 7
-
£2,827 GBP
View
B+
Retailer 8
-
£2,870 GBP
View
Retailer 9
-
£3,037 GBP
View
Price last confirmed 25 days ago
Retailer 10
-
£3,037 GBP
View
Price last confirmed 38 days ago
B+
Retailer 11
-
£3,219 GBP
View
B+
Retailer 12
-
£3,410 GBP
View
Retailer 13
-
£3,503 GBP
View
Price last confirmed 28 days ago
B
Retailer 14
-
£4,008 GBP
View
B
Retailer 15
-
£5,077 GBP
View
Most Expensive
NZ Jewellers
891b9216-6d5f-4369-b58f-a177430a820d · Sep 26
£5,290 GBP
$7,120 USD
View
Price last confirmed 40 days ago
15 more retailers have this diamond
Prices start from £2,244 GBPSave up to £2,833 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
£2,244 GBP