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Heart|Natural|GIA

0.34ct I SI1 Heart Natural Diamond

EX • I/SI1 • GIA 1199496696

Certificate GIA 1199496696

Diamond specifications and retailer prices

From £418 GBP
$561 USD
As of November 1, 2026
Save £203 GBP (33%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £648 GBP at Cape Diamonds · As of October 30, 2026
View at Cape Diamonds

About this 0.34ct natural heart diamond

This 0.34ct natural heart sits in the sub-half-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1199496696. Listed at 12 retailers as of November 1, 2026, with a 49% 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

0.34
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1199496696
Dimensions4.87 × 4.69 × 2.54 mm
L/W Ratio1.04
Key to symbols
Twinning Wisp
Top View
4.87 mm4.69 mm0.34 ctI / SI1
OriginNatural
CutExcellent
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 1199496696
Side View
Table 63.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 52.2%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £648 GBP|Low: £450 GBP|High: £977 GBP|Avg: £596 GBP|+2.3%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 6£450 GBP
Retailer 7£450 GBP
Retailer 8£467 GBP
Retailer 2£512 GBP
Retailer 4£621 GBP
Retailer 5£629 GBP
Cape Diamonds£648 GBP
Retailer 3£965 GBP

46 data points across 8 retailers

12 retailers£418 GBP to £621 GBP

B
Cheapest Retailer
-
£418 GBP
$561 USD
B
Retailer 2
-
£450 GBP
$604 USD
View
B
Retailer 3
-
£450 GBP
$604 USD
View
B
Retailer 4
-
£482 GBP
$647 USD
View
B
Retailer 5
-
£482 GBP
$647 USD
View
B
Retailer 6
-
£512 GBP
View
B
Retailer 7
-
£516 GBP
$693 USD
View
B
Retailer 8
-
£621 GBP
€794 EUR
View
Retailer 9
-
£629 GBP
A$1,298 AUD
View
Price last confirmed 29 days ago
Most Expensive
Cape Diamonds
cert_1199496696 · Oct 30
£648 GBP
ZAR 14,054 ZAR
View
Price under review
9 more retailers have this diamond
Prices start from £418 GBPSave up to £203 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.

B
0.34ct Heart
£418 GBP