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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 £2,627 GBP
HK$27,500 HKD
As of November 1, 2026
Save £3,747 GBP (59%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £6,374 GBP 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 £2,627 to £6,374, a £3,747 spread on the same certified stone. Queensmith lists it at £6,374. 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
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: £6,374 GBP|Low: £2,608 GBP|High: £6,621 GBP|Avg: £4,052 GBP|-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£2,627 GBP
Retailer 2£2,829 GBP
Retailer 7£3,205 GBP
Retailer 10£3,342 GBP
Retailer 4£3,453 GBP
Retailer 6£3,489 GBP
Retailer 8£3,553 GBP
Retailer 9£3,584 GBP
Retailer 3£5,531 GBP
Queensmith£6,374 GBP

40 data points across 10 retailers

16 retailers£2,627 GBP to £6,374 GBP

A
Cheapest Retailer
-
£2,627 GBP
HK$27,500 HKD
A
Retailer 2
-
£2,829 GBP
₹361,043 INR
View
A
Retailer 3
-
£3,205 GBP
$4,294 USD
View
Final sale: no returns
A
Retailer 4
-
£3,342 GBP
SGD 6,052 SGD
View
A
Retailer 5
-
£3,453 GBP
View
Retailer 6
-
£3,472 GBP
$4,652 USD
View
Price last confirmed 16 days ago
Retailer 7
-
£3,472 GBP
$4,652 USD
View
Price last confirmed 14 days ago
Retailer 8
-
£3,472 GBP
$4,652 USD
View
Price last confirmed 16 days ago
A
Retailer 9
-
£3,489 GBP
SGD 6,318 SGD
View
A
Retailer 10
-
£3,553 GBP
$4,760 USD
View
A
Retailer 11
-
£3,584 GBP
$4,803 USD
View
A
Retailer 12
-
£3,628 GBP
$4,861 USD
View
Retailer 13
-
£4,006 GBP
$5,368 USD
View
Price last confirmed 14 days ago
B+
Retailer 14
-
£5,531 GBP
View
Retailer 15
-
£6,050 GBP
$8,106 USD
View
Price last confirmed 15 days ago
Most Expensive
B+
Queensmith
1547460191 · Oct 28
£6,374 GBP
View
15 more retailers have this diamond
Prices start from £2,627 GBPSave up to £3,747 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.

A
1.51ct Heart
£2,627 GBP