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Heart|Natural|GIA

1.51ct D SI2 Heart Natural Diamond

EX • D/SI2 • GIA 1547460191

Certificate GIA 1547460191

Diamond specifications and retailer prices

From $3,520 USD
HK$27,500 HKD
As of November 1, 2026
Save $5,021 USD (59%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $8,541 USD at Queensmith · As of October 28, 2026
View at Queensmith

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1547460191. Listed at 16 retailers as of October 28, 2026, with prices from $3,520 to $8,541, a $5,021 spread on the same certified stone. Queensmith lists it at $8,541. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1547460191
Dimensions7.74 × 6.82 × 4.79 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle, Indented Natural
Top View
7.74 mm6.82 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1547460191
Side View
Table 58.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 61.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $8,541 USD|Low: $3,494 USD|High: $8,871 USD|Avg: $5,430 USD|-3.4%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 5$3,520 USD
Retailer 2$3,791 USD
Retailer 7$4,294 USD
Retailer 10$4,478 USD
Retailer 4$4,626 USD
Retailer 6$4,675 USD
Retailer 8$4,760 USD
Retailer 9$4,803 USD
Retailer 3$7,410 USD
Queensmith$8,541 USD

40 data points across 10 retailers

16 retailers$3,520 USD to $8,541 USD

A
Cheapest Retailer
-
$3,520 USD
HK$27,500 HKD
A
Retailer 2
-
$3,791 USD
₹361,043 INR
View
A
Retailer 3
-
$4,294 USD
View
Final sale: no returns
A
Retailer 4
-
$4,478 USD
SGD 6,052 SGD
View
A
Retailer 5
-
$4,626 USD
£3,643 GBP
View
Retailer 6
-
$4,652 USD
View
Price last confirmed 16 days ago
Retailer 7
-
$4,652 USD
View
Price last confirmed 14 days ago
Retailer 8
-
$4,652 USD
View
Price last confirmed 16 days ago
A
Retailer 9
-
$4,675 USD
SGD 6,318 SGD
View
A
Retailer 10
-
$4,760 USD
View
A
Retailer 11
-
$4,803 USD
View
A
Retailer 12
-
$4,861 USD
View
Retailer 13
-
$5,368 USD
View
Price last confirmed 14 days ago
B+
Retailer 14
-
$7,410 USD
£5,835 GBP
View
Retailer 15
-
$8,106 USD
View
Price last confirmed 15 days ago
Most Expensive
B+
Queensmith
1547460191 · Oct 28
$8,541 USD
£6,725 GBP
View
15 more retailers have this diamond
Prices start from $3,520 USDSave up to $5,021 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.

A
1.51ct Heart
$3,520 USD