Heart|Natural|GIA

0.70ct D SI1 Heart Natural Diamond

ID • D/SI1 • GIA 2537991850

Certificate GIA 2537991850

Diamond specifications and retailer prices

From £516 GBP
HK$5,400 HKD
As of October 25, 2026
Save £261 GBP (34%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £2,343 GBP at NZ Jewellers · As of September 25, 2026
View at NZ Jewellers

About this 0.7ct natural heart diamond

This 0.7ct natural heart sits in the half to three-quarter 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 2537991850. Listed at 13 retailers as of October 25, 2026, with a 51% 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

0.70
Carat
D
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle42.9°
OriginNatural
Grading LabGIA
CertificateGIA 2537991850
Dimensions5.09 × 6.13 × 3.75 mm
L/W Ratio1.20
Top View
5.09 mm6.13 mm0.70 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2537991850
Side View
Table 58.0%CrownGirdle: MED-VTKPavilion 42.9°Culet: NoneDepth 61.1%

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 25
Current: £633 GBP|Low: £487 GBP|High: £1,419 GBP|Avg: £809 GBP|-9.2%
Retailer 1
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
October 24, 2026
Retailer 10£516 GBP
Retailer 14£608 GBP
Retailer 12£627 GBP
Retailer 8£632 GBP
Retailer 7£633 GBP
Retailer 1£633 GBP
Retailer 9£668 GBP
Retailer 13£726 GBP
Retailer 2£777 GBP
Retailer 4£780 GBP
Retailer 6£987 GBP
Retailer 5£991 GBP
Retailer 11£994 GBP
Retailer 3£1,219 GBP

32 data points across 14 retailers

13 retailers£516 GBP to £777 GBP

A
Cheapest Retailer
-
£516 GBP
HK$5,400 HKD
Retailer 2
-
£627 GBP
$840 USD
View
Price last confirmed 7 days ago
Retailer 3
-
£632 GBP
$847 USD
View
Price last confirmed 9 days ago
Retailer 4
-
£633 GBP
View
Price last confirmed 7 days ago
Retailer 5
-
£633 GBP
€808 EUR
View
Price last confirmed 7 days ago
A
Retailer 6
-
£668 GBP
$895 USD
View
Retailer 7
-
£726 GBP
SGD 1,314 SGD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
£777 GBP
SGD 1,407 SGD
View
Retailer 9
-
£987 GBP
ZAR 21,355 ZAR
View
Price last confirmed 27 days ago
Retailer 10
-
£991 GBP
A$2,044 AUD
View
Price last confirmed 26 days ago
Retailer 11
-
£994 GBP
$1,331 USD
View
Price last confirmed 7 days ago
Retailer 12
-
£1,219 GBP
View
Price last confirmed 23 days ago
Most Expensive
NZ Jewellers
262e663b-229a-4332-96b2-f06b11bd1469 · Sep 25
£2,343 GBP
$3,140 USD
View
Price last confirmed 36 days ago
12 more retailers have this diamond
Prices start from £516 GBPSave up to £261 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
0.70ct Heart
£516 GBP