Heart|Natural|GIA

1.51ct I SI2 Heart Natural Diamond

GD • I/SI2 • GIA 6482518694

Certificate GIA 6482518694

Diamond specifications and retailer prices

From $4,350 USD
As of November 1, 2026
Save $4,466 USD (51%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,816 USD 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 $4,350 to $8,816, a $4,466 spread on the same certified stone. MOH London lists it at $8,816. 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
Color
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: Nov 1
Current: $8,816 USD|Low: $4,350 USD|High: $8,875 USD|Avg: $5,587 USD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 3$4,350 USD
Retailer 6$4,502 USD
Retailer 7$4,603 USD
Retailer 8$4,643 USD
Retailer 11$4,942 USD
Retailer 5$4,988 USD
Retailer 4$5,372 USD
Retailer 9$6,076 USD
Retailer 2$6,229 USD
Retailer 10$6,552 USD
MOH London$8,816 USD

39 data points across 11 retailers

13 retailers$4,350 USD to $8,816 USD

B+
Cheapest Retailer
-
$4,350 USD
B+
Retailer 2
-
$4,502 USD
View
B+
Retailer 3
-
$4,603 USD
View
Final sale: no returns
B+
Retailer 4
-
$4,643 USD
View
B+
Retailer 5
-
$4,942 USD
View
B
Retailer 6
-
$4,988 USD
View
B
Retailer 7
-
$5,370 USD
View
B
Retailer 8
-
$5,370 USD
View
B
Retailer 9
-
$5,372 USD
£4,230 GBP
View
B
Retailer 10
-
$5,550 USD
View
Retailer 11
-
$6,076 USD
View
Price last confirmed 18 days ago
B
Retailer 12
-
$6,229 USD
€5,932 EUR
View
Most Expensive
B
MOH London
2B834B157 · Oct 29
$8,816 USD
£6,942 GBP
View
12 more retailers have this diamond
Prices start from $4,350 USDSave up to $4,466 USD

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
$4,350 USD