CaratHunter
Plans
Heart|Natural|GIA

1.50ct K SI1 Heart Natural Diamond

EX • K/SI1 • GIA 7556184946

Certificate GIA 7556184946

Diamond specifications and retailer prices

From £1,930 GBP
As of November 6, 2026
Save £371 GBP (16%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £2,300 GBP at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.5ct natural heart diamond

This 1.5ct natural heart sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7556184946. Listed at 6 retailers as of November 5, 2026, with prices from £1,930 to £2,300, a £371 spread on the same certified stone. Blue Nile lists it at £2,300. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7556184946
Dimensions7.26 × 7.93 × 4.70 mm
L/W Ratio1.09
Culet sizeNone
Key to symbols
Twinning Wisp, Cloud
Top View
7.26 mm7.93 mm1.50 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7556184946
Side View
Table 58.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 59.2%

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: £2,300 GBP|Low: £1,930 GBP|High: £2,723 GBP|Avg: £2,203 GBP|-15.5%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 4£1,930 GBP
Retailer 6£1,979 GBP
Retailer 2£1,984 GBP
Retailer 3£2,072 GBP
Retailer 5£2,237 GBP
Blue Nile£2,300 GBP

45 data points across 6 retailers

6 retailers£1,930 GBP to £2,300 GBP

A
Cheapest Retailer
-
£1,930 GBP
A
Retailer 2
-
£1,979 GBP
View
A
Retailer 3
-
£1,984 GBP
View
A
Retailer 4
-
£2,072 GBP
View
A
Retailer 5
-
£2,237 GBP
View
Most Expensive
A
Blue Nile
29040818 · Nov 5
£2,300 GBP
$3,079 USD
View
5 more retailers have this diamond
Prices start from £1,930 GBPSave up to £371 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 Heart
£1,930 GBP