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Heart|Natural|GIA

1.21ct D SI2 Heart Natural Diamond

EX • D/SI2 • GIA 1545265538

Certificate GIA 1545265538

Diamond specifications and retailer prices

From HK$18,559 HKD
As of November 6, 2026
Save HK$22,086 HKD (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$47,279 HKD at Queensmith · As of October 28, 2026
View at Queensmith

About this 1.21ct natural heart diamond

This 1.21ct natural heart sits in the classic one-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 1545265538. Listed at 20 retailers as of November 4, 2026, with a 119% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.21
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1545265538
Dimensions7.33 × 6.74 × 4.30 mm
L/W Ratio1.09
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Cavity, Needle
Top View
7.33 mm6.74 mm1.21 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1545265538
Side View
Table 63.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 58.6%

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 6
Current: HK$47,279 HKD|Low: HK$18,457 HKD|High: HK$47,428 HKD|Avg: HK$27,244 HKD|+2.3%
Queensmith
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9HK$18,559 HKD
Retailer 2HK$19,327 HKD
Retailer 7HK$21,874 HKD
Retailer 3HK$22,462 HKD
Retailer 11HK$22,493 HKD
Retailer 6HK$25,213 HKD
Retailer 10HK$25,495 HKD
Retailer 5HK$25,801 HKD
Retailer 4HK$28,379 HKD
Retailer 8HK$40,645 HKD
QueensmithHK$47,279 HKD

30 data points across 11 retailers

20 retailersHK$18,559 HKD to HK$40,645 HKD

A
Cheapest Retailer
-
HK$18,559 HKD
A
Retailer 2
-
HK$19,327 HKD
View
B+
Retailer 3
-
HK$21,874 HKD
View
B+
Retailer 4
-
HK$22,462 HKD
View
B+
Retailer 5
-
HK$22,493 HKD
View
Final sale: no returns
B+
Retailer 6
-
HK$23,026 HKD
View
Retailer 7
-
HK$24,508 HKD
View
Price last confirmed 20 days ago
Retailer 8
-
HK$24,508 HKD
View
Price last confirmed 22 days ago
Retailer 9
-
HK$24,641 HKD
View
Price last confirmed 46 days ago
B+
Retailer 10
-
HK$25,213 HKD
View
Retailer 11
-
HK$25,448 HKD
View
Price last confirmed 22 days ago
B+
Retailer 12
-
HK$25,495 HKD
View
B+
Retailer 13
-
HK$25,801 HKD
View
Retailer 14
-
HK$28,277 HKD
View
Price last confirmed 19 days ago
B+
Retailer 15
-
HK$28,379 HKD
View
Retailer 16
-
HK$28,434 HKD
View
Price last confirmed 46 days ago
B
Retailer 17
-
HK$40,645 HKD
View
Retailer 18
-
HK$42,698 HKD
View
Price last confirmed 20 days ago
Retailer 19
-
HK$42,933 HKD
View
Price last confirmed 48 days ago
Most Expensive
Queensmith
1545265538 · Oct 28
HK$47,279 HKD
£4,750 GBP
View
Price last confirmed 9 days ago
19 more retailers have this diamond
Prices start from HK$18,559 HKDSave up to HK$22,086 HKD

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
1.21ct Heart
HK$18,559 HKD