Heart|Natural|GIA

1.55ct F SI1 Heart Natural Diamond

EX • F/SI1 • GIA 5231986090

Certificate GIA 5231986090

Diamond specifications and retailer prices

From $7,726 USD
£6,084 GBP
As of October 30, 2026
Save $5,098 USD (40%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $12,824 USD at Diamond Wish · As of November 2, 2026
View at Diamond Wish

About this 1.55ct natural heart diamond

This 1.55ct natural heart sits in the one-and-a-half to two carat band, graded F 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 5231986090. Listed at 2 retailers as of October 30, 2026, with prices from $7,726 to $12,824, a $5,098 spread on the same certified stone. Diamond Wish lists it at $12,824. 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

1.55
Carat
F
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 5231986090
Dimensions7.98 × 8.26 × 4.29 mm
L/W Ratio1.04
Top View
7.98 mm8.26 mm1.55 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceFaint
CertificateGIA 5231986090
Side View
Table 54.0%CrownGirdlePavilionCuletDepth 51.9%

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: Oct 30
Current: $12,824 USD|Low: $7,726 USD|High: $12,824 USD|Avg: $10,056 USD
Diamond Wish
Retailer 2
July 7, 2026
Retailer 2$7,726 USD
Diamond Wish$12,824 USD

23 data points across 2 retailers

2 retailers$7,726 USD to $12,824 USD

B
Cheapest Retailer
-
$7,726 USD
£6,084 GBP
Most Expensive
C
Diamond Wish
HR28175 · Nov 2
$12,824 USD
View
1 more retailer has this diamond
Prices start from $7,726 USDSave up to $5,098 USD

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
1.55ct Heart
$7,726 USD