Heart|Natural|GIA

1.51ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 11955784

Certificate GIA 11955784

Diamond specifications and retailer prices

From €6,625 EUR
$7,430 USD
As of October 31, 2026
Save €4,915 EUR (43%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €11,539 EUR 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 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 11955784. Listed at 12 retailers as of October 29, 2026, with prices from €6,625 to €11,539, a €4,915 spread on the same certified stone. MOH London lists it at €11,539. 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

1.51
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 11955784
Dimensions7.19 × 7.82 × 4.42 mm
L/W Ratio1.09
Culet sizeNone
Top View
7.19 mm7.82 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 11955784
Side View
Table 60.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 56.6%

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 31
Current: €11,539 EUR|Low: €6,625 EUR|High: €11,616 EUR|Avg: €8,494 EUR|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 6€6,625 EUR
Retailer 3€7,684 EUR
Retailer 5€7,694 EUR
Retailer 4€7,761 EUR
Retailer 2€8,996 EUR
Retailer 7€9,069 EUR
MOH London€11,539 EUR

44 data points across 7 retailers

12 retailers€6,625 EUR to €11,539 EUR

B+
Cheapest Retailer
-
€6,625 EUR
$7,430 USD
B+
Retailer 2
-
€6,760 EUR
CA$10,531 CAD
View
B+
Retailer 3
-
€7,684 EUR
£6,786 GBP
View
B
Retailer 4
-
€7,694 EUR
$8,630 USD
View
Retailer 5
-
€7,761 EUR
A$13,393 AUD
View
Price last confirmed 9 days ago
B
Retailer 6
-
€7,906 EUR
$8,867 USD
View
B
Retailer 7
-
€8,185 EUR
$9,180 USD
View
B
Retailer 8
-
€8,185 EUR
$9,180 USD
View
B
Retailer 9
-
€8,461 EUR
$9,490 USD
View
B
Retailer 10
-
€8,996 EUR
View
Retailer 11
-
€9,069 EUR
$10,172 USD
View
Price last confirmed 10 days ago
Most Expensive
B
MOH London
071D4CC6A · Oct 29
€11,539 EUR
£10,191 GBP
View
11 more retailers have this diamond
Prices start from €6,625 EURSave up to €4,915 EUR

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
€6,625 EUR