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Heart|Natural|GIA

1.51ct I SI2 Heart Natural Diamond

GD • I/SI2 • GIA 6482518694

Certificate GIA 6482518694

Diamond specifications and retailer prices

From £3,247 GBP
$4,350 USD
As of October 30, 2026
Save £3,333 GBP (51%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £6,580 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6482518694. Listed at 13 retailers as of October 29, 2026, with prices from £3,247 to £6,580, a £3,333 spread on the same certified stone. MOH London lists it at £6,580. 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

1.51
Carat
I
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6482518694
Dimensions6.96 × 6.58 × 4.51 mm
L/W Ratio1.06
Top View
6.96 mm6.58 mm1.51 ctI / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6482518694
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 68.5%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: £6,580 GBP|Low: £3,150 GBP|High: £6,623 GBP|Avg: £4,128 GBP|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 3£3,247 GBP
Retailer 6£3,360 GBP
Retailer 7£3,435 GBP
Retailer 8£3,465 GBP
Retailer 11£3,688 GBP
Retailer 5£3,723 GBP
Retailer 4£4,009 GBP
Retailer 9£4,535 GBP
Retailer 2£4,651 GBP
Retailer 10£4,890 GBP
MOH London£6,580 GBP

37 data points across 11 retailers

13 retailers£3,247 GBP to £6,580 GBP

B+
Cheapest Retailer
-
£3,247 GBP
$4,350 USD
B+
Retailer 2
-
£3,360 GBP
$4,502 USD
View
B+
Retailer 3
-
£3,435 GBP
$4,603 USD
View
Final sale: no returns
B+
Retailer 4
-
£3,465 GBP
$4,643 USD
View
B+
Retailer 5
-
£3,688 GBP
$4,942 USD
View
B
Retailer 6
-
£3,723 GBP
$4,988 USD
View
B
Retailer 7
-
£4,008 GBP
$5,370 USD
View
B
Retailer 8
-
£4,008 GBP
$5,370 USD
View
B
Retailer 9
-
£4,009 GBP
View
B
Retailer 10
-
£4,142 GBP
$5,550 USD
View
Retailer 11
-
£4,535 GBP
$6,076 USD
View
Price last confirmed 18 days ago
B
Retailer 12
-
£4,651 GBP
€5,935 EUR
View
Most Expensive
B
MOH London
2B834B157 · Oct 29
£6,580 GBP
View
12 more retailers have this diamond
Prices start from £3,247 GBPSave up to £3,333 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+
1.51ct Heart
£3,247 GBP