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Heart|Natural|GIA

1.53ct G SI1 Heart Natural Diamond

GD • G/SI1 • GIA 1553492009

Certificate GIA 1553492009

Diamond specifications and retailer prices

From £4,075 GBP
$5,468 USD
As of November 1, 2026
Save £1,362 GBP (25%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £5,436 GBP at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 1.53ct natural heart diamond

This 1.53ct natural heart sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1553492009. Listed at 3 retailers as of November 1, 2026, with prices from £4,075 to £5,436, a £1,362 spread on the same certified stone. 77 Diamonds lists it at £5,436. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.53
Carat
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 1553492009
Dimensions6.41 × 6.94 × 4.39 mm
L/W Ratio1.08
Top View
6.41 mm6.94 mm1.53 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 1553492009
Side View
Table 68.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 63.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £5,436 GBP|Low: £4,075 GBP|High: £5,436 GBP|Avg: £4,569 GBP|+0.0%
77 Diamonds
Retailer 2
Retailer 3
November 2, 2026
Retailer 2£4,075 GBP
Retailer 3£4,283 GBP
77 Diamonds£5,436 GBP

5 data points across 3 retailers

3 retailers£4,075 GBP to £5,436 GBP

B+
Cheapest Retailer
-
£4,075 GBP
$5,468 USD
B+
Retailer 2
-
£4,283 GBP
A$8,842 AUD
View
Most Expensive
B
77 Diamonds
HSMBXJMQQJYN · Nov 2
£5,436 GBP
View
2 more retailers have this diamond
Prices start from £4,075 GBPSave up to £1,362 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+
1.53ct Heart
£4,075 GBP