Heart|Natural|GIA

1.51ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 11955784

Certificate GIA 11955784

Diamond specifications and retailer prices

From €6,651 EUR
$7,430 USD
As of October 31, 2026
Save €4,934 EUR (43%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €11,585 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 €6,651 to €11,585, a €4,934 spread on the same certified stone. MOH London lists it at €11,585. 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
Color
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: €11,585 EUR|Low: €6,651 EUR|High: €11,662 EUR|Avg: €8,527 EUR|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 6€6,651 EUR
Retailer 2€7,714 EUR
Retailer 5€7,725 EUR
Retailer 4€7,792 EUR
Retailer 3€9,035 EUR
Retailer 7€9,105 EUR
MOH London€11,585 EUR

44 data points across 7 retailers

12 retailers€6,651 EUR to €11,585 EUR

B+
Cheapest Retailer
-
€6,651 EUR
$7,430 USD
B+
Retailer 2
-
€6,787 EUR
CA$10,531 CAD
View
B+
Retailer 3
-
€7,714 EUR
£6,786 GBP
View
B
Retailer 4
-
€7,725 EUR
$8,630 USD
View
Retailer 5
-
€7,792 EUR
A$13,393 AUD
View
Price last confirmed 9 days ago
B
Retailer 6
-
€7,937 EUR
$8,867 USD
View
B
Retailer 7
-
€8,217 EUR
$9,180 USD
View
B
Retailer 8
-
€8,217 EUR
$9,180 USD
View
B
Retailer 9
-
€8,494 EUR
$9,490 USD
View
B
Retailer 10
-
€9,035 EUR
View
Retailer 11
-
€9,105 EUR
$10,172 USD
View
Price last confirmed 9 days ago
Most Expensive
B
MOH London
071D4CC6A · Oct 29
€11,585 EUR
£10,191 GBP
View
11 more retailers have this diamond
Prices start from €6,651 EURSave up to €4,934 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
€6,651 EUR