Heart|Natural|GIA

1.53ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 2528505619

Certificate GIA 2528505619

Diamond specifications and retailer prices

From £2,926 GBP
As of November 6, 2026
Save £3,331 GBP (53%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £6,589 GBP at NZ Jewellers · As of October 18, 2026
View at NZ Jewellers

About this 1.53ct natural heart diamond

This 1.53ct natural heart sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2528505619. Listed at 13 retailers as of November 4, 2026, with a 114% 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

1.53
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 2528505619
Dimensions6.79 × 7.82 × 4.74 mm
L/W Ratio1.15
Top View
6.79 mm7.82 mm1.53 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2528505619
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 60.6%

Caratlytics Score

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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: £2,961 GBP|Low: £2,897 GBP|High: £6,350 GBP|Avg: £3,834 GBP|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 3£2,926 GBP
Retailer 1£2,961 GBP
Retailer 5£3,112 GBP
Retailer 8£3,139 GBP
Retailer 9£3,319 GBP
Retailer 4£3,694 GBP
Retailer 7£3,971 GBP
Retailer 6£4,618 GBP
Retailer 2£6,257 GBP

36 data points across 9 retailers

13 retailers£2,926 GBP to £6,257 GBP

A
Cheapest Retailer
-
£2,926 GBP
A
Retailer 2
-
£2,961 GBP
View
Retailer 3
-
£3,112 GBP
View
Price last confirmed 14 days ago
A
Retailer 4
-
£3,139 GBP
View
Final sale: no returns
A
Retailer 5
-
£3,319 GBP
View
A
Retailer 6
-
£3,612 GBP
View
A
Retailer 7
-
£3,694 GBP
View
Retailer 8
-
£3,716 GBP
View
Price last confirmed 20 days ago
Retailer 9
-
£3,940 GBP
View
Price last confirmed 20 days ago
Retailer 10
-
£3,940 GBP
View
Price last confirmed 19 days ago
Retailer 11
-
£3,971 GBP
View
Price last confirmed 28 days ago
B+
Retailer 12
-
£6,257 GBP
View
Most Expensive
NZ Jewellers
ef2d0258-2570-4509-9514-7eac59059459 · Oct 18
£6,589 GBP
$8,819 USD
View
Price last confirmed 19 days ago
12 more retailers have this diamond
Prices start from £2,926 GBPSave up to £3,331 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
1.53ct Heart
£2,926 GBP