Heart|Natural|GIA

0.37ct D SI1 Heart Natural Diamond

EX • D/SI1 • GIA 6542248829

Certificate GIA 6542248829

Diamond specifications and retailer prices

From £296 GBP
HK$3,100 HKD
As of October 26, 2026
Save £237 GBP (44%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,319 GBP at NZ Jewellers · As of October 24, 2026
View at NZ Jewellers

About this 0.37ct natural heart diamond

This 0.37ct natural heart sits in the sub-half-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 6542248829. Listed at 17 retailers as of October 26, 2026, with a 80% 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

0.37
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6542248829
Dimensions4.47 × 5.03 × 2.86 mm
L/W Ratio1.13
Top View
4.47 mm5.03 mm0.37 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6542248829
Side View
Table 58.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 56.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 26
Current: £1,319 GBP|Low: £247 GBP|High: £1,343 GBP|Avg: £541 GBP|-1.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 26, 2026
Retailer 10£252 GBP
Retailer 16£296 GBP
Retailer 6£344 GBP
Retailer 15£351 GBP
Retailer 8£363 GBP
Retailer 14£371 GBP
Retailer 5£397 GBP
Retailer 11£410 GBP
Retailer 3£474 GBP
Retailer 9£474 GBP
Retailer 4£483 GBP
Retailer 7£491 GBP
Retailer 2£533 GBP
Retailer 13£697 GBP
Retailer 12£796 GBP
Retailer 17£977 GBP
NZ Jewellers£1,319 GBP

24 data points across 17 retailers

17 retailers£296 GBP to £533 GBP

Retailer 1
-
£252 GBP
₹32,096 INR
Price last confirmed 7 days ago
A
Retailer 2
-
£296 GBP
HK$3,100 HKD
View
Retailer 3
-
£344 GBP
$461 USD
View
Price last confirmed 10 days ago
Retailer 4
-
£351 GBP
SGD 636 SGD
View
Price last confirmed 8 days ago
Retailer 5
-
£363 GBP
SGD 658 SGD
View
Price last confirmed 7 days ago
Retailer 6
-
£371 GBP
$497 USD
View
Price last confirmed 10 days ago
Retailer 7
-
£397 GBP
$532 USD
View
Price last confirmed 9 days ago
Retailer 8
-
£410 GBP
View
Price last confirmed 7 days ago
Retailer 9
-
£474 GBP
$635 USD
View
Price last confirmed 9 days ago
Retailer 10
-
£474 GBP
$635 USD
View
Price last confirmed 8 days ago
Retailer 11
-
£483 GBP
$647 USD
View
Price last confirmed 8 days ago
Retailer 12
-
£491 GBP
$658 USD
View
Price last confirmed 7 days ago
B
Retailer 13
-
£533 GBP
View
Retailer 14
-
£697 GBP
View
Price last confirmed 8 days ago
Retailer 15
-
£796 GBP
View
Price last confirmed 8 days ago
Retailer 16
-
£977 GBP
CA$1,819 CAD
View
Price last confirmed 10 days ago
Most Expensive
NZ Jewellers
fec96f7c-f9e6-49dd-bd70-e8194bc45432 · Oct 24
£1,319 GBP
$1,767 USD
View
Price under review
16 more retailers have this diamond
Prices start from £296 GBPSave up to £237 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
0.37ct Heart
£296 GBP